Certified Emergency Nurse (CEN) Examination — Questions and Answers

Question 1: A patient presents after ingesting a large amount of diphenhydramine. Which finding would be MOST unexpected in this toxicity?

Miosis (Correct answer)
Sedation and confusion
Urinary retention
QRS widening

Correct answer: Miosis

Miosis (pupil constriction) would be unexpected; diphenhydramine causes mydriasis due to its anticholinergic properties, not miosis.

Question 2: A patient on phenytoin has a serum level of 5 mcg/mL (therapeutic range 10–20). They are seizing again. What is the priority action?

Start levetiracetam as a new agent only
Discharge and follow up with neurology
Administer IV lorazepam first, then supplement phenytoin (Correct answer)
Double the oral dose and observe

Correct answer: Administer IV lorazepam first, then supplement phenytoin

Active seizures require immediate benzodiazepine to stop the seizure, followed by IV fosphenytoin/phenytoin to correct the subtherapeutic level.

Question 3: A patient presents with sudden onset dyspnea, pleuritic chest pain, and unilateral leg swelling after a long flight. SpO2 is 88%. Which condition is MOST likely?

Pleural effusion
Pulmonary embolism (Correct answer)
Acute MI
Spontaneous pneumothorax

Correct answer: Pulmonary embolism

Dyspnea, pleuritic chest pain, hypoxia, and unilateral leg swelling following prolonged immobility are classic features of pulmonary embolism.

Question 4: A patient requests that their HIV status not be shared with their spouse who is also a patient in the ED. The nurse should:

Refuse to treat the patient further without consent to disclose
Maintain confidentiality per HIPAA unless a mandatory reporting law applies (Correct answer)
Inform the spouse due to potential exposure risk immediately
Document the request and share with the care team only

Correct answer: Maintain confidentiality per HIPAA unless a mandatory reporting law applies

HIPAA protects patient confidentiality, and disclosure requires legal basis such as mandatory public health reporting requirements.

Question 5: Which finding on a 12-lead ECG indicates posterior MI?

ST elevation in V5-V6
ST elevation in leads II, III, and aVF
ST elevation in leads I, aVL, and V6
Tall R waves and ST depression in V1-V2 (Correct answer)

Correct answer: Tall R waves and ST depression in V1-V2

Posterior MI presents as a mirror image on standard leads, showing tall R waves, ST depression, and upright T waves in V1-V2, which represents posterior ST elevation when viewed from the back.

Question 6: A nurse working in the emergency department identifies a systemic staffing issue that compromises patient safety. Which action best reflects professional advocacy?

Resign from the position and seek employment elsewhere
Discuss concerns only with coworkers during breaks
Accept the situation to avoid conflict with management
Document the issue and formally report it to nursing leadership and administration (Correct answer)

Correct answer: Document the issue and formally report it to nursing leadership and administration

Professional advocacy requires nurses to formally report systemic safety concerns through appropriate channels, driving organizational change for patient safety.

Question 7: A patient arrives after a high-speed MVC with a GCS of 8. The primary survey reveals no airway obstruction. What is the most appropriate next step?

Obtain a CT head immediately
Apply a cervical collar and observe
Perform rapid sequence intubation (Correct answer)
Administer 1L normal saline bolus

Correct answer: Perform rapid sequence intubation

A GCS of 8 or below indicates inability to protect the airway, making rapid sequence intubation the priority.

Question 8: Torsades de pointes is most commonly associated with which electrolyte abnormality?

Hyperkalemia
Hypernatremia
Hypomagnesemia (Correct answer)
Hypercalcemia

Correct answer: Hypomagnesemia

Hypomagnesemia is the most common electrolyte cause of Torsades de pointes, and IV magnesium sulfate is the treatment of choice.

Question 9: A trauma patient is found to have free air under the diaphragm on upright chest X-ray. What does this indicate?

Subcutaneous emphysema from pneumothorax
Normal finding in a ventilated patient
Diaphragmatic rupture with herniated bowel
Hollow viscus perforation with intraperitoneal air (Correct answer)

Correct answer: Hollow viscus perforation with intraperitoneal air

Free intraperitoneal air (pneumoperitoneum) under the diaphragm indicates perforation of a hollow viscus such as the stomach, small bowel, or colon.

Question 10: What is the most effective study technique according to research?

Highlighting text
Active recall with spaced repetition (Correct answer)
Listening to music while studying
Re-reading notes multiple times

Correct answer: Active recall with spaced repetition

Active recall (testing yourself) combined with spaced repetition (reviewing at intervals) is the most effective study method per cognitive science research.

Question 11: After an eclamptic seizure in a patient at 38 weeks gestation, what is the priority nursing action?

Insert a urinary catheter to monitor hourly output
Administer a magnesium sulfate loading dose
Prepare for immediate cesarean delivery
Assess fetal heart tones and maternal oxygen saturation (Correct answer)

Correct answer: Assess fetal heart tones and maternal oxygen saturation

Following an eclamptic seizure, immediate assessment of maternal oxygenation and fetal heart rate determines the stability of both patients and guides further management.

Question 12: Which medication is used to reduce cerebral edema associated with brain tumors or herniation?

Furosemide
Lisinopril
Mannitol (Correct answer)
Acetazolamide

Correct answer: Mannitol

Mannitol is an osmotic diuretic that reduces ICP by drawing fluid out of brain tissue into the vascular space.

Question 13: Which clinical finding differentiates neurogenic shock from hemorrhagic shock in a trauma patient?

Bradycardia and warm extremities in neurogenic shock (Correct answer)
Low blood pressure in both
Tachycardia and warm extremities in hemorrhagic shock
Altered mental status present only in neurogenic shock

Correct answer: Bradycardia and warm extremities in neurogenic shock

Neurogenic shock (from spinal cord injury) presents with bradycardia and vasodilation (warm extremities), unlike hemorrhagic shock which causes tachycardia and vasoconstriction.

Question 14: Which triage system uses five levels and was developed specifically for emergency department use in the United States?

Australasian Triage Scale (ATS)
Manchester Triage System (MTS)
Canadian Triage and Acuity Scale (CTAS)
Emergency Severity Index (ESI) (Correct answer)

Correct answer: Emergency Severity Index (ESI)

The Emergency Severity Index (ESI) is a five-level triage tool developed in the US specifically for ED use, focusing on acuity and anticipated resource needs.

Question 15: A patient refuses a recommended blood transfusion citing religious beliefs. They are alert and competent. What should the nurse do?

Respect the refusal and document it, ensuring informed refusal is obtained (Correct answer)
Administer the transfusion anyway to save the patient's life
Seek an emergency court order to override the patient's decision
Contact the patient's family to convince them to change the patient's mind

Correct answer: Respect the refusal and document it, ensuring informed refusal is obtained

A competent adult has the right to refuse any treatment, including life-saving interventions; the nurse must respect this decision and document informed refusal.

Question 16: Which ECG change is the MOST sensitive indicator of tricyclic antidepressant toxicity?

Prolonged PR interval
T-wave inversions in lateral leads
QRS duration greater than 100 ms (Correct answer)
ST elevation in V1-V3

Correct answer: QRS duration greater than 100 ms

QRS widening greater than 100 ms is the most sensitive ECG marker for TCA toxicity and predicts risk of seizures and dysrhythmias.

Question 17: During a focused assessment with sonography in trauma (FAST exam), which four areas are evaluated?

Pericardium, right and left upper quadrants, pelvis/bladder (Correct answer)
Liver, spleen, kidneys, aorta
Lungs, aorta, pericardium, bladder
Peritoneum, retroperitoneum, mediastinum, pleura

Correct answer: Pericardium, right and left upper quadrants, pelvis/bladder

The FAST exam evaluates the pericardial space, right upper quadrant (hepatorenal), left upper quadrant (splenorenal), and pelvic/bladder areas for free fluid.

Question 18: A patient presents with palpitations and the ECG shows a narrow-complex tachycardia at 160 bpm with no visible P waves. Vagal maneuvers are ineffective. What is the next treatment?

Synchronized cardioversion at 50 J
Adenosine 6 mg rapid IV push (Correct answer)
Diltiazem 0.25 mg/kg IV
Amiodarone 150 mg IV over 10 minutes

Correct answer: Adenosine 6 mg rapid IV push

For stable SVT unresponsive to vagal maneuvers, adenosine 6 mg IV rapid push is the first pharmacological treatment per ACLS.

Question 19: A patient presents with severe salicylate toxicity and an arterial blood gas showing respiratory alkalosis with metabolic acidosis. Which treatment should be initiated?

Sodium bicarbonate IV drip to alkalinize urine (Correct answer)
Calcium gluconate infusion
Activated charcoal regardless of time since ingestion
Hemodialysis only for pH less than 7.0

Correct answer: Sodium bicarbonate IV drip to alkalinize urine

Urinary alkalinization with sodium bicarbonate traps ionized salicylate in the renal tubules, enhancing elimination and reducing CNS penetration.

Question 20: Which type of traumatic brain injury is associated with a 'lucid interval' followed by rapid neurological deterioration?

Diffuse axonal injury
Subdural hematoma
Subarachnoid hemorrhage
Epidural hematoma (Correct answer)

Correct answer: Epidural hematoma

Epidural hematoma classically presents with a brief lucid interval after head injury, followed by rapid deterioration as the hematoma expands and compresses the brain.

Question 21: When using a non-rebreather mask, what minimum flow rate is required to keep the reservoir bag inflated?

2–4 L/min
10–15 L/min (Correct answer)
4–6 L/min
6–8 L/min

Correct answer: 10–15 L/min

A flow rate of 10–15 L/min is needed to maintain reservoir bag inflation and deliver up to 90–95% FiO2 via non-rebreather mask.

Question 22: Which sign indicates impending respiratory arrest in a patient with severe asthma exacerbation?

Loud wheezing bilaterally
Silent chest with markedly decreased air movement (Correct answer)
Moderate tachycardia
Mild accessory muscle use

Correct answer: Silent chest with markedly decreased air movement

A 'silent chest' indicates near-complete airway obstruction with no air movement, a pre-arrest finding requiring immediate intervention.

Question 23: Which ethical principle is violated when a patient is restrained without meeting legal criteria simply because staff find the patient 'difficult'?

Beneficence
Veracity
Justice
Autonomy and non-maleficence (Correct answer)

Correct answer: Autonomy and non-maleficence

Inappropriate restraint violates the patient's autonomy (right to self-determination) and causes harm, violating non-maleficence.

Question 24: A 2-year-old presents with sudden onset of cough, unilateral wheeze, and decreased breath sounds on the right. The most likely diagnosis is:

Bronchiolitis
Croup
Right-sided pneumonia
Foreign body aspiration (Correct answer)

Correct answer: Foreign body aspiration

Sudden onset of unilateral wheeze and decreased breath sounds in a toddler strongly suggests foreign body aspiration, most commonly in the right mainstem bronchus.

Question 25: What does the CURB-65 score assess in pneumonia patients?

Response to antibiotic therapy
Risk of pleural effusion
Severity and need for hospitalization (Correct answer)
Likelihood of bacterial vs. viral etiology

Correct answer: Severity and need for hospitalization

CURB-65 evaluates confusion, urea, respiratory rate, blood pressure, and age ≥65 to determine pneumonia severity and disposition.

Question 26: A 7-year-old with known sickle cell disease presents with fever of 38.8°C and no focal infection. What is the most critical next step?

Blood cultures and empiric IV antibiotics (Correct answer)
Discharge with oral antibiotics
Acetaminophen and observation
Hydroxyurea dose adjustment

Correct answer: Blood cultures and empiric IV antibiotics

Febrile children with sickle cell disease are at risk for overwhelming sepsis and require blood cultures and empiric IV antibiotics urgently.

Question 27: During a critical situation, you notice that several team members are communicating poorly and there is a lack of coordination. What should you do as a leader to ensure patient safety?

Take charge and assign specific tasks to each team member (Correct answer)
Wait until the situation is over to address the issue
Allow the team to continue working without interference
Leave the team to manage the situation on their own, as they should be trained for such events

Correct answer: Take charge and assign specific tasks to each team member

In a critical situation with poor communication and lack of coordination, a leader must immediately intervene to ensure patient safety. Taking charge and assigning specific tasks clarifies roles, improves communication, and streamlines efforts, preventing errors and optimizing patient outcomes. Waiting or allowing the situation to continue would jeopardize the patient.

Question 28: What is the correct order for donning PPE?

Gloves, gown, mask, eye protection
Any order is acceptable
Gown, mask, eye protection, gloves (Correct answer)
Mask, gloves, gown, eye protection

Correct answer: Gown, mask, eye protection, gloves

The correct donning sequence is gown first, then mask/respirator, eye protection/face shield, and gloves last. This prevents contamination during application.

Question 29: When assessing pain using the OPQRST mnemonic, the 'T' component refers to:

Type of analgesic needed
Treatment already attempted
Temperature of the affected area
Timing of the pain onset and duration (Correct answer)

Correct answer: Timing of the pain onset and duration

In OPQRST, 'T' stands for Timing, which includes when the pain started, whether it is constant or intermittent, and its duration.

Question 30: When assessing capillary refill time in an adult, which finding is considered abnormal?

Exactly 2 seconds
Greater than 2 seconds (Correct answer)
1 to 2 seconds
Less than 1 second

Correct answer: Greater than 2 seconds

Capillary refill time greater than 2 seconds in adults indicates impaired peripheral perfusion and may suggest shock or vascular compromise.

Question 31: A patient seizing for more than 5 minutes is considered to have status epilepticus. What is the first-line IV treatment?

Phenobarbital
Lorazepam (Correct answer)
Levetiracetam
Phenytoin

Correct answer: Lorazepam

Benzodiazepines such as lorazepam are first-line treatment for status epilepticus due to rapid onset and CNS inhibitory action.

Question 32: Which of the following is the priority intervention for a patient with a suspected spinal cord injury?

IV methylprednisolone bolus
Immediate MRI
Lumbar puncture
Spinal immobilization (Correct answer)

Correct answer: Spinal immobilization

Spinal immobilization is the immediate priority to prevent secondary injury from movement before definitive imaging and diagnosis.

Question 33: A patient presents with nuchal rigidity, fever, and photophobia. What diagnostic test should be performed after CT?

MRI with gadolinium
Carotid Doppler
EEG
Lumbar puncture (Correct answer)

Correct answer: Lumbar puncture

Lumbar puncture for CSF analysis is essential to diagnose bacterial meningitis after CT rules out herniation risk.

Question 34: A patient with ischemic stroke arrives within 2 hours of symptom onset. What is the first-line pharmacological intervention if eligible?

Aspirin 325 mg
Heparin infusion
IV alteplase (tPA) (Correct answer)
Warfarin loading dose

Correct answer: IV alteplase (tPA)

IV alteplase (tPA) is the standard fibrinolytic therapy for eligible ischemic stroke patients within the 3–4.5 hour window.

Question 35: Which situation would constitute a HIPAA violation in the emergency department?

Sharing patient information with the treating physician team during handoff
Reporting a patient's communicable disease diagnosis to the local health department
Discussing a patient's condition with a consulting specialist involved in their care
Posting a patient's name and diagnosis on a public-facing whiteboard visible to visitors (Correct answer)

Correct answer: Posting a patient's name and diagnosis on a public-facing whiteboard visible to visitors

Displaying identifiable patient information (name and diagnosis) in areas visible to unauthorized individuals violates HIPAA's privacy rule.

Question 36: Which principle underlies the concept of informed consent in emergency nursing?

Justice — ensuring equal distribution of medical resources
Patient autonomy — the right to make informed decisions about their care (Correct answer)
Beneficence — acting in the patient's best interest without input
Fidelity — maintaining loyalty to the institution's policies

Correct answer: Patient autonomy — the right to make informed decisions about their care

Informed consent is rooted in patient autonomy, requiring that competent patients receive adequate information to make voluntary decisions about their care.

Question 37: When triaging a pediatric patient using the Pediatric Assessment Triangle (PAT), which three components are evaluated?

Appearance, work of breathing, circulation to skin (Correct answer)
Level of consciousness, pupil response, skin color
Heart rate, respiratory rate, temperature
Airway, breathing, circulation

Correct answer: Appearance, work of breathing, circulation to skin

The PAT assesses Appearance (tone, interactivity, consolability, gaze, speech/cry), Work of Breathing, and Circulation to Skin as a rapid across-the-room assessment.

Question 38: A patient has weakness, diplopia, and dysphagia that worsen throughout the day. What neurological emergency should be suspected?

Multiple sclerosis exacerbation
Myasthenia gravis crisis (Correct answer)
Guillain-Barré syndrome
Transient ischemic attack

Correct answer: Myasthenia gravis crisis

Myasthenic crisis presents with fatigable weakness that worsens with activity and may require ventilatory support.

Question 39: A patient with acute decompensated heart failure has a BNP of 1,200 pg/mL and SpO2 of 88% on room air. Which is the priority intervention?

Apply high-flow oxygen via non-rebreather mask (Correct answer)
Administer furosemide 40 mg IV
Obtain a chest X-ray to confirm pulmonary edema
Place the patient supine for better venous return

Correct answer: Apply high-flow oxygen via non-rebreather mask

Correcting hypoxia is the immediate priority; high-flow oxygen via non-rebreather mask (or CPAP/BiPAP if available) should be applied first.

Question 40: What is the relationship between theory and practice in Cardiac Emergencies?

Practice is unnecessary if you know theory
Theory is unnecessary
They are completely separate
Theory provides the foundation; practice applies it to real situations (Correct answer)

Correct answer: Theory provides the foundation; practice applies it to real situations

Theory provides the conceptual foundation and principles, while practice involves applying those concepts to real-world situations. Both are essential for competence.

Question 41: A 3-year-old with a febrile seizure lasting 12 minutes is brought by EMS. Diazepam was given rectally en route without effect. What is the next pharmacologic intervention?

IV/IO lorazepam or midazolam (Correct answer)
Additional rectal diazepam
Levetiracetam oral
Phenobarbital IM

Correct answer: IV/IO lorazepam or midazolam

After a failed benzodiazepine dose, a second IV/IO benzodiazepine is the next step per status epilepticus protocols.

Question 42: A woman with 8 weeks amenorrhea and a positive pregnancy test presents with sudden severe unilateral lower abdominal pain, BP 88/56 mmHg, and HR 122 bpm. Which intervention is MOST urgent?

Administer methotrexate IM
Obtain a pelvic ultrasound
Establish large-bore IV access and prepare for emergency surgery (Correct answer)
Perform a bimanual vaginal examination

Correct answer: Establish large-bore IV access and prepare for emergency surgery

A ruptured ectopic pregnancy causes life-threatening hemorrhage; immediate large-bore IV access and surgical intervention are critical priorities in the hemodynamically unstable patient.

Question 43: Which leadership style is MOST effective when managing a mass casualty incident in the ED?

Democratic leadership with group voting on triage decisions
Autocratic/directive leadership with clear command structure (Correct answer)
Laissez-faire leadership
Transformational leadership focused on long-term development

Correct answer: Autocratic/directive leadership with clear command structure

Directive leadership with a clear incident command structure is essential during mass casualty events to ensure rapid, coordinated decision-making.

Question 44: A patient on anticoagulation presents with dyspnea, tachycardia, and pleuritic chest pain after a long flight. What diagnosis must be ruled out?

Spontaneous pneumothorax
Pulmonary embolism (Correct answer)
Aortic dissection
Acute MI

Correct answer: Pulmonary embolism

Pulmonary embolism classically follows prolonged immobility and presents with dyspnea, tachycardia, and pleuritic chest pain.

Question 45: Cushing's triad (hypertension, bradycardia, irregular respirations) indicates which life-threatening condition?

Neurogenic shock
Hypoglycemic encephalopathy
Increased intracranial pressure (Correct answer)
Basilar skull fracture

Correct answer: Increased intracranial pressure

Cushing's triad is a late sign of severely elevated intracranial pressure and impending brainstem herniation.

Question 46: A patient with hemoptysis, night sweats, and weight loss from a country with high TB prevalence. What is the priority infection control measure?

Droplet precautions with surgical mask
Standard precautions only
Airborne isolation in a negative-pressure room (Correct answer)
Contact precautions only

Correct answer: Airborne isolation in a negative-pressure room

Suspected pulmonary tuberculosis requires airborne precautions in a negative-pressure room to prevent spread of aerosolized mycobacteria.

Question 47: Which laboratory result is the best early indicator of tissue hypoperfusion and the adequacy of resuscitation in a trauma patient?

Serum lactate (Correct answer)
Serum creatinine
Complete blood count
BUN/creatinine ratio

Correct answer: Serum lactate

Serum lactate reflects anaerobic metabolism from tissue hypoperfusion and is the most sensitive early marker of shock and resuscitation adequacy.

Question 48: What are standard precautions in healthcare?

Only wearing gloves for known infections
Treating all blood and body fluids as potentially infectious (Correct answer)
Using masks during surgery only
Hand washing after patient contact only

Correct answer: Treating all blood and body fluids as potentially infectious

Standard precautions assume all blood and body fluids are potentially infectious, requiring consistent use of barriers (gloves, gowns, masks) and hand hygiene for all patient interactions.

Question 49: A nurse preceptor notices a new ED nurse is not performing a skill safely. The best immediate action is to:

Document the error and allow the nurse to self-correct
Complete the orientation period before addressing the issue
Report the new nurse to the manager before speaking with them
Intervene to ensure patient safety, then provide structured feedback privately (Correct answer)

Correct answer: Intervene to ensure patient safety, then provide structured feedback privately

Patient safety requires immediate intervention, followed by constructive, private feedback to support the new nurse's professional development.

Question 50: What role does ethics play in Toxicology practice?

Ethics is optional in professional settings
It guides professional conduct and protects stakeholders (Correct answer)
It only applies to managers
It only matters for legal compliance

Correct answer: It guides professional conduct and protects stakeholders

Professional ethics provide frameworks for responsible decision-making, ensuring practitioners act in the best interest of those they serve.

Question 51: In the SALT triage system, the initial sorting step instructs responders to first ask all patients to:

State their name and date of birth
Lie still until assessed individually
Walk to a designated area if able (Correct answer)
Remove clothing for rapid assessment

Correct answer: Walk to a designated area if able

SALT begins with a global sort by asking those who can walk to move to a designated area, quickly separating the ambulatory from non-ambulatory victims.

Question 52: Which scale is most commonly used in the ED to assess level of consciousness and neurological status?

AVPU scale
Glasgow Coma Scale (Correct answer)
Rankin scale
NIHSS

Correct answer: Glasgow Coma Scale

The Glasgow Coma Scale (GCS) evaluates eye, verbal, and motor responses to provide a standardized neurological assessment in emergency settings.

Question 53: A patient with suspected digoxin toxicity develops bradycardia and ventricular dysrhythmias with a potassium of 6.2 mEq/L. What is the FIRST priority treatment?

Administer potassium to normalize the level
Perform synchronized cardioversion
Administer digoxin-specific Fab antibody fragments (Correct answer)
Administer calcium gluconate immediately

Correct answer: Administer digoxin-specific Fab antibody fragments

Digoxin-specific Fab fragments (Digibind/DigiFab) are the definitive treatment for life-threatening digoxin toxicity and work rapidly to reverse toxicity.

Question 54: A pediatric patient (weight 20 kg) requires fluid resuscitation for hemorrhagic shock. What is the correct initial bolus volume?

400 mL normal saline
300 mL normal saline (Correct answer)
200 mL normal saline
100 mL normal saline

Correct answer: 300 mL normal saline

Pediatric trauma fluid resuscitation begins with 10-20 mL/kg; 20 kg × 10-15 mL = 200-300 mL isotonic crystalloid is standard (commonly 300 mL).

Question 55: Which medication is the antidote for magnesium sulfate toxicity?

Naloxone
Flumazenil
Protamine sulfate
Calcium gluconate (Correct answer)

Correct answer: Calcium gluconate

Calcium gluconate is the antidote for magnesium sulfate toxicity; it directly antagonizes the neuromuscular and cardiovascular effects of excess magnesium.

Question 56: What is the most common cause of community-acquired pneumonia in adults in the US?

Haemophilus influenzae
Mycoplasma pneumoniae
Streptococcus pneumoniae (Correct answer)
Legionella pneumophila

Correct answer: Streptococcus pneumoniae

Streptococcus pneumoniae (pneumococcus) remains the most frequent bacterial cause of community-acquired pneumonia in US adults.

Question 57: Which mechanism best explains why elderly trauma patients have higher mortality than younger patients with similar injury severity scores?

Elderly patients have more pain sensitivity causing vasovagal responses
Reduced physiologic reserve and higher rates of anticoagulant use (Correct answer)
Emergency nurses triage elderly patients as lower priority
Elderly patients refuse treatment more often

Correct answer: Reduced physiologic reserve and higher rates of anticoagulant use

Reduced physiologic reserve, comorbidities, and common anticoagulant use impair the elderly patient's ability to compensate for traumatic injury.

Question 58: A nurse in your team is consistently arriving late to shifts and missing mandatory training sessions. Which of the following is the best approach to address this issue?

Immediately issue a written warning
Suspend the nurse for noncompliance
Ignore the issue, as it may resolve on its own
Meet with the nurse privately to discuss the issue and explore underlying causes (Correct answer)

Correct answer: Meet with the nurse privately to discuss the issue and explore underlying causes

The best initial approach for addressing an employee's performance issues, such as consistent tardiness or missed training, is a private, constructive conversation. This allows the charge nurse to understand any underlying personal or professional challenges the nurse might be facing, offer support, clarify expectations, and collaboratively develop a plan for improvement. This approach is supportive, professional, and often more effective than immediate disciplinary action, fostering a positive work environment.

Question 59: What is a nosocomial infection?

A respiratory infection
A genetic condition
A childhood disease
An infection acquired in a healthcare facility (Correct answer)

Correct answer: An infection acquired in a healthcare facility

Nosocomial (healthcare-associated) infections are acquired during the course of receiving medical treatment in a healthcare facility, not present at admission.

Question 60: A 3-year-old presents with drooling, muffled voice, high fever, and refusal to move the neck. The nurse should FIRST:

Obtain a throat swab for culture
Attempt to visualize the oropharynx with a tongue blade
Prepare for immediate airway management and notify the physician (Correct answer)
Administer antipyretics and observe

Correct answer: Prepare for immediate airway management and notify the physician

These signs suggest epiglottitis — a life-threatening airway emergency; the airway must be secured immediately without agitating the child.

Question 61: Which finding is MOST consistent with serotonin syndrome rather than neuroleptic malignant syndrome?

Lead-pipe rigidity
Diaphoresis with normal reflexes
Clonus and hyperreflexia (Correct answer)
Hyperthermia over 41°C

Correct answer: Clonus and hyperreflexia

Clonus and hyperreflexia are hallmark features of serotonin syndrome, distinguishing it from NMS which presents with lead-pipe rigidity.

Question 62: Which finding is MOST consistent with cardiac tamponade on physical examination?

Hypotension, tracheal deviation, and neck vein distension
S3 gallop, peripheral edema, and pulmonary crackles
Tachycardia, hypotension, and absent breath sounds
Hypotension, JVD, and muffled heart sounds (Beck's triad) (Correct answer)

Correct answer: Hypotension, JVD, and muffled heart sounds (Beck's triad)

Beck's triad — hypotension, JVD, and muffled heart sounds — is the classic presentation of cardiac tamponade.

Question 63: Under mandatory reporting laws, which situation requires an emergency nurse to report to authorities without the patient's consent?

A child presenting with injuries suspicious for non-accidental trauma (Correct answer)
A patient with a mental health condition expressing abstract fears
An adult patient requesting privacy about their diagnosis
A patient refusing discharge against medical advice

Correct answer: A child presenting with injuries suspicious for non-accidental trauma

Suspected child abuse is a mandatory reporting situation in all US states; nurses are legally required to report to child protective services regardless of patient or family consent.

Question 64: Raccoon eyes (periorbital ecchymosis) bilaterally in a trauma patient suggest what injury?

Temporal lobe contusion
Anterior basilar skull fracture (Correct answer)
Facial fracture only
Orbital blowout fracture

Correct answer: Anterior basilar skull fracture

Bilateral periorbital bruising ('raccoon eyes') is a classic delayed sign of an anterior basilar skull fracture.

Question 65: What is the most appropriate head position for a patient with suspected elevated ICP?

Head of bed elevated 30° (Correct answer)
Trendelenburg (head down 15°)
Right lateral decubitus
Supine with head flat

Correct answer: Head of bed elevated 30°

Elevating the head of bed to 30° promotes venous drainage from the cranium, helping to reduce ICP.

Question 66: During assessment of an abdominal aortic aneurysm (AAA), the nurse palpates a pulsatile midline mass. Which associated finding would suggest rupture?

Intermittent claudication
Sudden severe pain radiating to the back with hypotension (Correct answer)
Hematuria
Mild periumbilical tenderness

Correct answer: Sudden severe pain radiating to the back with hypotension

Sudden severe abdominal or back pain with hemodynamic instability in a patient with a known AAA strongly suggests rupture.

Question 67: A trauma patient develops sudden deterioration with decreased breath sounds on the left, tracheal shift to the right, and hypotension. The correct immediate treatment is:

Needle decompression at the 2nd intercostal space, midclavicular line on the left (Correct answer)
Emergency pericardiocentesis
Endotracheal intubation
Chest X-ray to confirm before treatment

Correct answer: Needle decompression at the 2nd intercostal space, midclavicular line on the left

Clinical signs of tension pneumothorax require immediate needle decompression without waiting for imaging to prevent cardiovascular collapse.

Question 68: Which finding differentiates a TIA from an ischemic stroke in the emergency setting?

Presence of atrial fibrillation
Severity of symptoms
Age of the patient
Complete resolution of symptoms within 24 hours without infarction on imaging (Correct answer)

Correct answer: Complete resolution of symptoms within 24 hours without infarction on imaging

A TIA resolves completely within 24 hours (typically minutes) with no evidence of infarction on diffusion-weighted MRI.

Question 69: A patient presents with somnolence, seizures, and serum sodium of 118 mEq/L. What is the target rate of sodium correction to prevent osmotic demyelination syndrome?

Correct sodium by 2-3 mEq/L per hour until symptoms resolve
Sodium can be corrected at any rate if symptoms are severe
Correct sodium as rapidly as possible to normalize levels within 4 hours
No more than 8-10 mEq/L increase in 24 hours (Correct answer)

Correct answer: No more than 8-10 mEq/L increase in 24 hours

Overly rapid correction of severe hyponatremia risks osmotic demyelination (central pontine myelinolysis); correction should not exceed 8-10 mEq/L in 24 hours.

Question 70: A patient on warfarin presents with INR of 9.2 and active GI bleeding. Which reversal agent is most appropriate?

4-factor prothrombin complex concentrate (4F-PCC) plus Vitamin K (Correct answer)
Fresh frozen plasma alone
Protamine sulfate IV
Vitamin K 10 mg IV only

Correct answer: 4-factor prothrombin complex concentrate (4F-PCC) plus Vitamin K

4F-PCC provides immediate reversal of warfarin's anticoagulant effect, while Vitamin K provides sustained reversal; this combination is preferred for life-threatening bleeding.

Question 71: What should you do when encountering a difficult question?

Mark it, move on, and return to it later (Correct answer)
Stare at it until you figure it out
Guess immediately without reading
Skip it permanently

Correct answer: Mark it, move on, and return to it later

Mark difficult questions and move on to avoid wasting time. After completing easier questions, return with fresh perspective and remaining time.

Question 72: What is HIPAA?

Health Insurance Portability and Accountability Act — protects patient privacy (Correct answer)
A medical diagnosis code
A hospital ranking system
A type of insurance plan

Correct answer: Health Insurance Portability and Accountability Act — protects patient privacy

HIPAA establishes national standards for protecting patient health information, ensuring privacy and security of medical records.

Question 73: Which activity is an example of a nurse participating in quality improvement (QI)?

Scheduling staff vacation coverage
Analyzing trends in door-to-ECG times to reduce delays (Correct answer)
Completing mandatory payroll documentation
Reviewing a patient's insurance eligibility

Correct answer: Analyzing trends in door-to-ECG times to reduce delays

Quality improvement involves systematic data analysis to identify opportunities for enhancing care processes, such as tracking and reducing door-to-ECG times.

Question 74: A patient presents with unilateral absence of breath sounds after a central line placement. The nurse should first assess for:

Hemothorax
Pulmonary embolism
Pneumothorax (Correct answer)
Pleural effusion

Correct answer: Pneumothorax

Absent unilateral breath sounds following central line insertion is a classic presentation of iatrogenic pneumothorax.

Question 75: A patient's family member demands to see the patient's medical record immediately, claiming they have power of attorney. The nurse should:

Ask the patient verbally if it is acceptable, regardless of their capacity
Verify legal documentation of POA before releasing any information (Correct answer)
Deny access entirely as family have no rights to records
Provide all records immediately upon verbal claim

Correct answer: Verify legal documentation of POA before releasing any information

Power of attorney for healthcare must be legally documented before a nurse can disclose protected health information to a third party.

Question 76: You are preparing to implement a new protocol in your emergency department to improve patient flow. How can you best engage your team in this change?

Provide education and involve the team in the decision-making process before implementation (Correct answer)
Wait for feedback from the team after the protocol has been implemented
Implement the protocol immediately without prior discussion to avoid delays
Ask the team to follow the protocol without explanation of the changes

Correct answer: Provide education and involve the team in the decision-making process before implementation

Engaging the team in protocol changes through education and involvement fosters buy-in and understanding. When staff feel heard and understand the rationale, they are more likely to adopt and effectively implement new procedures. This collaborative approach minimizes resistance, identifies potential issues early, and ultimately leads to smoother, more successful implementation and improved patient flow.

Question 77: Which intervention is most important in the initial management of suspected carbon monoxide poisoning?

Apply 100% O2 via non-rebreather mask immediately (Correct answer)
Administer sodium thiosulfate IV
Arrange emergent bronchoscopy to assess airway
Obtain chest X-ray to assess for inhalation injury

Correct answer: Apply 100% O2 via non-rebreather mask immediately

High-flow 100% oxygen via non-rebreather mask reduces the half-life of carboxyhemoglobin from 4-5 hours (room air) to approximately 60-90 minutes.

Question 78: A COPD patient presents with worsening dyspnea and a PaCO2 of 65 mmHg. What ventilatory support should be initiated first?

Simple face mask at 15 L/min
Nasal cannula at 2 L/min only
Immediate intubation
Non-invasive positive pressure ventilation (NIPPV/BiPAP) (Correct answer)

Correct answer: Non-invasive positive pressure ventilation (NIPPV/BiPAP)

BiPAP is the preferred initial ventilatory support for hypercapnic COPD exacerbations, reducing the need for intubation.

Question 79: Which blood product ratio is recommended when activating a massive transfusion protocol (MTP) to replicate whole blood?

1:0:1 (pRBC:platelets)
4:1:0 (pRBC:FFP:platelets)
1:1:1 (pRBC:FFP:platelets) (Correct answer)
2:1:1 (pRBC:FFP:platelets)

Correct answer: 1:1:1 (pRBC:FFP:platelets)

A 1:1:1 ratio of packed red blood cells, fresh frozen plasma, and platelets is the standard for massive transfusion protocols to optimize hemostasis.

Question 80: The Glasgow Coma Scale (GCS) assesses which three components?

Orientation, memory, comprehension
Pupils, motor, verbal
Alertness, voice, pain, unresponsive
Eye opening, verbal response, motor response (Correct answer)

Correct answer: Eye opening, verbal response, motor response

The GCS evaluates eye opening (1-4), verbal response (1-5), and motor response (1-6) for a total score ranging from 3 to 15.

Question 81: Which intervention is contraindicated in a patient with epiglottitis suspected in the ED?

IV antibiotics
Humidified oxygen
Direct visualization of the throat with a tongue blade (Correct answer)
Airway readiness at bedside

Correct answer: Direct visualization of the throat with a tongue blade

Forcing visualization of the throat in epiglottitis can trigger complete airway obstruction and should be avoided unless in a controlled setting.

Question 82: Which study approach is most effective for Pediatric Emergencies material?

Active recall with practice questions (Correct answer)
Highlighting all text
Passive re-reading of notes
Studying for very long sessions without breaks

Correct answer: Active recall with practice questions

Active recall through practice questions is the most effective study method, as it strengthens memory retrieval pathways.

Question 83: Which study approach is most effective for Cardiac Emergencies material?

Passive re-reading of notes
Studying for very long sessions without breaks
Active recall with practice questions (Correct answer)
Highlighting all text

Correct answer: Active recall with practice questions

Active recall through practice questions is the most effective study method, as it strengthens memory retrieval pathways.

Question 84: A patient with known COPD presents with increasing dyspnea and SpO2 of 82%. Which oxygen delivery is most appropriate initially?

Nasal cannula at 1-2 L/min titrated to SpO2 88-92% (Correct answer)
Venturi mask at 40% FiO2
Bag-valve-mask ventilation at 100% O2
Non-rebreather mask at 15 L/min

Correct answer: Nasal cannula at 1-2 L/min titrated to SpO2 88-92%

COPD patients may rely on hypoxic drive; target SpO2 88-92% with low-flow O2 via nasal cannula to avoid suppressing respiratory drive.

Question 85: What is the characteristic barking cough and inspiratory stridor in a child most likely caused by?

Pertussis
Croup (laryngotracheobronchitis) (Correct answer)
Foreign body aspiration
Epiglottitis

Correct answer: Croup (laryngotracheobronchitis)

Croup causes subglottic swelling producing the classic seal-like barking cough and inspiratory stridor, most commonly due to parainfluenza virus.

Question 86: A patient post-seizure is confused and lethargic. What is this period called?

Focal onset seizure
Absence episode
Todd's paralysis
Postictal state (Correct answer)

Correct answer: Postictal state

The postictal state is a transient period of confusion and fatigue that follows a seizure as the brain recovers.

Question 87: Which finding during assessment of a burn patient most immediately determines fluid resuscitation requirements?

Depth of the burn (superficial vs. full thickness)
Patient age and pre-existing conditions
Location of the burn (face vs. extremities)
Total body surface area (TBSA) affected (Correct answer)

Correct answer: Total body surface area (TBSA) affected

Total body surface area (TBSA) burned is the primary determinant of fluid resuscitation volume using formulas such as the Parkland formula.

Question 88: The 'P' in the SALT triage method stands for:

Position
Priority (Correct answer)
Perfusion
Pulse

Correct answer: Priority

SALT (Sort, Assess, Lifesaving Interventions, Treatment/Transport) uses 'P' for Priority after lifesaving interventions are applied.

Question 89: A patient arrives via EMS in full cardiac arrest. Which assessment action should occur simultaneously with CPR initiation?

Place IV access
Attach cardiac monitor/defibrillator (Correct answer)
Obtain blood glucose level
Obtain a 12-lead ECG

Correct answer: Attach cardiac monitor/defibrillator

Cardiac monitor/defibrillator attachment occurs simultaneously with CPR to identify shockable rhythms (VF/pVT) requiring immediate defibrillation.

Question 90: An 18-year-old female presents with bilateral lower abdominal pain, fever, and vaginal discharge and reports multiple sexual partners. Which STI screening should be prioritized?

Herpes simplex virus and HPV
Trichomonas only
HIV and syphilis only
Gonorrhea, chlamydia, HIV, and syphilis (Correct answer)

Correct answer: Gonorrhea, chlamydia, HIV, and syphilis

Gonorrhea and chlamydia are the most common causative organisms of PID, and HIV and syphilis screening are indicated given the history of multiple partners.

Question 91: Subcutaneous emphysema (crepitus) palpated in the neck after chest trauma suggests what injury?

Tracheobronchial injury or pneumothorax (Correct answer)
Rib fracture without pneumothorax
Hemothorax
Pulmonary contusion

Correct answer: Tracheobronchial injury or pneumothorax

Air escaping from a tracheobronchial tear or pneumothorax tracks into subcutaneous tissue, causing the crackling crepitus felt in the neck and chest.

Question 92: Which condition is defined by PaO2/FiO2 ratio < 200, bilateral infiltrates on CXR, and no evidence of cardiogenic edema?

Pulmonary embolism
Massive hemothorax
Acute respiratory distress syndrome (ARDS) (Correct answer)
Severe COPD exacerbation

Correct answer: Acute respiratory distress syndrome (ARDS)

ARDS is defined by the Berlin criteria: acute onset, bilateral infiltrates, P/F ratio < 300 (severe < 100), and non-cardiogenic cause.

Question 93: Which cervical spine clearance criterion allows clinical clearance without imaging in a low-risk alert trauma patient?

NEXUS criteria (Correct answer)
Ottawa Cervical Spine Rules
Pittsburgh Decision Rule
Canadian CT Head Rule

Correct answer: NEXUS criteria

The NEXUS criteria (National Emergency X-Radiography Utilization Study) allow clinical clearance of the cervical spine without imaging when all five criteria are met.

Question 94: Which symptom cluster correctly describes the anticholinergic toxidrome?

Mydriasis, tachycardia, dry skin, urinary retention (Correct answer)
Miosis, bradycardia, diaphoresis, urinary retention
Mydriasis, bradycardia, flushing, diaphoresis
Miosis, bradycardia, bronchospasm, lacrimation

Correct answer: Mydriasis, tachycardia, dry skin, urinary retention

The anticholinergic toxidrome is remembered as 'hot as a hare, dry as a bone, red as a beet, blind as a bat, mad as a hatter' — mydriasis, tachycardia, dry skin, urinary retention.

Question 95: What is the classic CXR finding in a patient with pulmonary edema from acute left heart failure?

Bilateral perihilar ('bat-wing') infiltrates (Correct answer)
Pleural effusion with mediastinal shift
Apical hyperinflation
Unilateral consolidation

Correct answer: Bilateral perihilar ('bat-wing') infiltrates

Bilateral perihilar infiltrates in a bat-wing pattern on CXR reflect fluid redistribution from pulmonary venous hypertension in acute pulmonary edema.

Question 96: How does documentation support quality in Pediatric Emergencies?

Documentation is unnecessary overhead
It creates records, ensures consistency, and enables improvement (Correct answer)
It only serves administrative purposes
It is only for billing

Correct answer: It creates records, ensures consistency, and enables improvement

Proper documentation creates accountability, ensures consistency, supports quality improvement, and provides legal protection.

Question 97: How should you manage time during a timed test?

Divide total time by questions and pace yourself, spending less on easy ones (Correct answer)
Spend equal time on every question
Only work on hard questions
Rush through the entire test

Correct answer: Divide total time by questions and pace yourself, spending less on easy ones

Calculate time per question, spend less on easy questions to bank time for harder ones, and check your pace periodically.

Question 98: A nurse documents an error in a patient's chart. What is the correct procedure?

Leave the entry unchanged to avoid drawing attention to the mistake
Delete the entry from the electronic health record without notation
Draw a single line through the error, note 'error,' date, time, and initial it (Correct answer)
Erase or white-out the incorrect entry and rewrite it

Correct answer: Draw a single line through the error, note 'error,' date, time, and initial it

Proper error correction requires drawing a single line through the mistake, writing 'error,' and including the date, time, and initials to maintain an accurate, legal record.

Question 99: What is the most effective study technique according to research?

Active recall with spaced repetition (Correct answer)
Re-reading notes multiple times
Highlighting text
Listening to music while studying

Correct answer: Active recall with spaced repetition

Active recall (testing yourself) combined with spaced repetition (reviewing at intervals) is the most effective study method per cognitive science research.

Question 100: A patient presents with sudden, severe left lower quadrant pain, nausea, vomiting, and an ultrasound showing an enlarged, edematous ovary. Which diagnosis is most likely?

Ovarian torsion (Correct answer)
Ectopic pregnancy
Pelvic inflammatory disease
Appendicitis

Correct answer: Ovarian torsion

Ovarian torsion presents with sudden, severe unilateral pelvic pain and an enlarged ovary on ultrasound, requiring emergency surgical detorsion to restore blood flow.

Question 101: A 10-month-old is brought in unresponsive after a witnessed choking episode. No cry or cough is present. What is the correct intervention sequence?

Start CPR immediately
5 back blows then 5 chest thrusts (Correct answer)
Blind finger sweeps then ventilation
Abdominal thrusts (Heimlich)

Correct answer: 5 back blows then 5 chest thrusts

For infants under 1 year with complete airway obstruction, alternating 5 back blows and 5 chest thrusts is the recommended technique.

Question 102: Which action by an ED charge nurse BEST demonstrates transformational leadership?

Enforcing rules strictly without exception to maintain order
Rewarding staff only based on metrics achieved
Inspiring staff to improve patient care by articulating a shared vision and mentoring growth (Correct answer)
Making all scheduling decisions unilaterally to save time

Correct answer: Inspiring staff to improve patient care by articulating a shared vision and mentoring growth

Transformational leadership motivates staff through shared vision, mentorship, and encouraging innovation beyond transactional reward systems.

Question 103: A triage nurse is assessing a patient during a chemical exposure mass casualty event. Which action is the nurse's FIRST priority before initiating triage assessment?

Obtain IV access and administer antidote
Document the patient's exposure history
Apply a triage tag and move the patient inside
Ensure the patient has been decontaminated (Correct answer)

Correct answer: Ensure the patient has been decontaminated

Decontamination must be confirmed before triage assessment to prevent secondary contamination of staff and the ED environment.

Question 104: Which electrocardiogram finding is most characteristic of hyperkalemia?

Prolonged QT interval
Peaked T waves and widened QRS complex (Correct answer)
Shortened PR interval with delta waves
ST-segment depression in V4-V6

Correct answer: Peaked T waves and widened QRS complex

Hyperkalemia causes peaked T waves, widened QRS, and eventually a sine-wave pattern due to impaired cardiac conduction.

Question 105: What is the relationship between theory and practice in Pediatric Emergencies?

Theory is unnecessary
Practice is unnecessary if you know theory
Theory provides the foundation; practice applies it to real situations (Correct answer)
They are completely separate

Correct answer: Theory provides the foundation; practice applies it to real situations

Theory provides the conceptual foundation and principles, while practice involves applying those concepts to real-world situations. Both are essential for competence.

Question 106: What is the immediate treatment for a tension pneumothorax?

Needle decompression at 2nd ICS midclavicular line (Correct answer)
Intubation and mechanical ventilation
Chest X-ray then chest tube
High-flow O2 and observation

Correct answer: Needle decompression at 2nd ICS midclavicular line

Tension pneumothorax is a clinical emergency requiring immediate needle decompression without waiting for imaging.

Question 107: Which finding on CT scan is most consistent with an epidural hematoma?

Midline shift only
Biconvex (lens-shaped) hyperdensity (Correct answer)
Diffuse axonal injury
Crescent-shaped hyperdensity

Correct answer: Biconvex (lens-shaped) hyperdensity

An epidural hematoma classically appears as a biconvex (lens-shaped) hyperdensity on CT due to arterial bleeding between the skull and dura.

Question 108: During transcutaneous pacing, the nurse notes electrical capture but the patient remains unresponsive. What is the most likely explanation?

Lead placement is incorrect
The pacemaker output is set too low
Mechanical capture has not been achieved (Correct answer)
The pacing rate is too slow

Correct answer: Mechanical capture has not been achieved

Electrical capture (pacing spikes followed by wide QRS) does not guarantee mechanical capture; mechanical capture must be confirmed by a palpable pulse or improved blood pressure.

Question 109: A 52-year-old male presents with a stab wound to the abdomen. He is conscious but appears pale and diaphoretic. His blood pressure is 90/60, and his heart rate is 120 bpm. What is the most appropriate first intervention?

Place a chest tube to relieve tension pneumothorax
Perform a detailed abdominal exam to locate the injury
Initiate fluid resuscitation with IV normal saline (Correct answer)
Administer pain medication and prepare for surgery

Correct answer: Initiate fluid resuscitation with IV normal saline

A patient with a stab wound to the abdomen, appearing pale, diaphoretic, hypotensive (90/60), and tachycardic (120 bpm), is showing signs of hypovolemic shock likely due to internal bleeding. The most appropriate first intervention is rapid fluid resuscitation with IV normal saline to restore circulating volume and improve perfusion. This is a critical life-saving measure to stabilize the patient before definitive surgical intervention.

Question 110: A patient with known liver cirrhosis presents with hematemesis. On exam, there are dilated superficial abdominal veins and splenomegaly. What is the most likely source of bleeding?

Peptic ulcer disease
Mallory-Weiss tear
Esophageal varices (Correct answer)
Boerhaave syndrome

Correct answer: Esophageal varices

Portal hypertension from cirrhosis causes esophageal varices; signs of portal hypertension (caput medusae, splenomegaly) point to variceal bleeding as the source.

Question 111: A patient presents with sudden onset of the 'worst headache of their life.' What condition should be suspected first?

Subarachnoid hemorrhage (Correct answer)
Migraine with aura
Tension headache
Cluster headache

Correct answer: Subarachnoid hemorrhage

Sudden severe 'thunderclap' headache is a classic hallmark of subarachnoid hemorrhage until proven otherwise.

Question 112: During a mass casualty incident, which principle guides the decision to tag a patient as Expectant (Black) rather than Immediate (Red)?

Arrival order at the triage area
Patient's expressed wishes for treatment
Patient's age and pre-existing conditions
Severity of injuries relative to available resources (Correct answer)

Correct answer: Severity of injuries relative to available resources

Expectant tagging is resource-based; injuries that would consume disproportionate resources with low survival probability are classified Black to maximize overall survivor count.

Question 113: Which patient presentation would be INCORRECTLY triaged if a nurse fails to account for pediatric vital sign norms at triage?

A 6-year-old with HR 105 and RR 26 who is alert and playful (Correct answer)
An adult with HR 105 and RR 26 who is alert
An adult with HR 180 and RR 10 who is lethargic
A 6-year-old with HR 180 and RR 10 who is lethargic

Correct answer: A 6-year-old with HR 105 and RR 26 who is alert and playful

A heart rate of 105 and RR of 26 are abnormal for an adult but within normal range for a 6-year-old; applying adult norms would over-triage this child.

Question 114: A patient presents with sudden pleuritic chest pain, dyspnea, and absent breath sounds on the left. What is the most likely diagnosis?

Pneumothorax (Correct answer)
Pulmonary embolism
Hemothorax
Pleural effusion

Correct answer: Pneumothorax

Absent breath sounds with acute pleuritic pain and dyspnea are classic signs of pneumothorax, especially spontaneous in tall young patients.

Question 115: When delegating tasks to an emergency department technician, the RN must ensure the delegated task is:

Approved by the physician before assignment
Only non-clinical administrative work
Documented as completed by the RN in the chart
Within the technician's scope of practice and competency (Correct answer)

Correct answer: Within the technician's scope of practice and competency

Delegation requires the RN to verify that the task is within the delegatee's legal scope and that they have demonstrated competency.

Question 116: A patient with a stab wound to the left chest develops hypotension, JVD, and electrical alternans on the ECG. The most likely diagnosis is:

Tension pneumothorax
Cardiac tamponade (Correct answer)
Aortic laceration
Massive hemothorax

Correct answer: Cardiac tamponade

Electrical alternans (alternating QRS amplitude) combined with hypotension and JVD is pathognomonic for cardiac tamponade.

Question 117: Which finding would cause a nurse using the ESI algorithm to assign a level 2 rather than level 3?

The patient has a UTI and needs urinalysis and antibiotics
The patient has a mild headache with no other symptoms
The patient has a sprained ankle and needs an X-ray
The patient is in active labor at 38 weeks gestation with contractions every 3 minutes (Correct answer)

Correct answer: The patient is in active labor at 38 weeks gestation with contractions every 3 minutes

Active labor with frequent contractions is a high-risk situation meeting ESI-2 criteria because the patient should not wait due to risk of rapid delivery.

Question 118: A 45-year-old male presents with chest pain, diaphoresis, and nausea. His vital signs are BP 160/100, HR 110, RR 22, and O2 saturation of 94%. Which of the following should be prioritized in his assessment?

Pain management
Neuro exam for possible stroke
Blood glucose levels
ECG monitoring and assessment for acute coronary syndrome (ACS) (Correct answer)

Correct answer: ECG monitoring and assessment for acute coronary syndrome (ACS)

The patient's symptoms (chest pain, diaphoresis, nausea) and vital signs (hypertension, tachycardia) are highly suggestive of acute coronary syndrome (ACS), such as a myocardial infarction. ECG monitoring is the most critical initial diagnostic tool for ACS, providing immediate information about cardiac electrical activity and potential ischemia or injury. Prioritizing an ECG allows for rapid diagnosis and initiation of life-saving interventions to preserve cardiac muscle.

Question 119: A patient on digoxin presents with nausea, vomiting, and a heart rate of 42 bpm with a junctional escape rhythm. Serum digoxin level is 3.8 ng/mL. What is the most appropriate treatment?

Increase the digoxin dose to restore normal sinus rhythm
Administer digoxin-specific antibody fragments (Digibind) (Correct answer)
Perform immediate DC cardioversion
Administer calcium gluconate IV

Correct answer: Administer digoxin-specific antibody fragments (Digibind)

Digoxin toxicity with hemodynamic compromise or life-threatening arrhythmias is treated with digoxin-specific Fab antibody fragments (Digibind/DigiFab).

Question 120: What is the primary concern when managing a patient with Guillain-Barré syndrome in the ED?

Respiratory failure from ascending paralysis (Correct answer)
Cerebral edema
Hypertensive emergency
Seizure activity

Correct answer: Respiratory failure from ascending paralysis

Guillain-Barré syndrome causes ascending demyelinating paralysis that can reach the diaphragm, necessitating close respiratory monitoring.

Question 121: Which of the following is the most important initial intervention for a patient presenting with an acute asthma exacerbation?

Apply supplemental oxygen to maintain oxygen saturation > 92% (Correct answer)
Start intravenous magnesium sulfate
Prepare for intubation and mechanical ventilation
Administer systemic corticosteroids

Correct answer: Apply supplemental oxygen to maintain oxygen saturation > 92%

For a patient experiencing an acute asthma exacerbation, the immediate priority is to address hypoxemia and improve oxygenation. Applying supplemental oxygen helps maintain adequate oxygen saturation, preventing further tissue hypoxia and organ damage. While bronchodilators and corticosteroids are also crucial, ensuring adequate oxygenation is foundational to stabilizing the patient's respiratory status and preventing deterioration.

Question 122: When performing a secondary assessment on a trauma patient, which mnemonic guides a head-to-toe evaluation?

AVPU
DCAP-BTLS (Correct answer)
OPQRST
SAMPLE

Correct answer: DCAP-BTLS

DCAP-BTLS (Deformities, Contusions, Abrasions, Punctures/Penetrations, Burns, Tenderness, Lacerations, Swelling) guides systematic head-to-toe trauma assessment.

Question 123: A patient with a foreign body airway obstruction is unconscious after failed back blows. What is the next step?

Continue back blows indefinitely
Immediate cricothyrotomy
Perform abdominal thrusts in supine position and visualize airway (Correct answer)
Begin CPR with chest compressions only

Correct answer: Perform abdominal thrusts in supine position and visualize airway

In an unconscious patient with FBAO, perform CPR with each breath attempt preceded by looking in the mouth for a visible foreign body.

Question 124: A construction worker falls 20 feet and presents with midline thoracic back pain and inability to move his legs. Spinal precautions are in place. Which intervention has the highest priority?

Ensure airway patency and adequate ventilation (Correct answer)
Obtain an urgent MRI of the spine
Insert a urinary catheter to monitor output
Administer IV methylprednisolone

Correct answer: Ensure airway patency and adequate ventilation

Airway and breathing always take priority in trauma management; thoracic cord injury can impair respiratory muscles.

Question 125: How does documentation support quality in Toxicology?

It creates records, ensures consistency, and enables improvement (Correct answer)
Documentation is unnecessary overhead
It is only for billing
It only serves administrative purposes

Correct answer: It creates records, ensures consistency, and enables improvement

Proper documentation creates accountability, ensures consistency, supports quality improvement, and provides legal protection.

Question 126: A newly certified emergency nurse asks about the value of obtaining the CEN credential. Which response is MOST accurate?

CEN certification guarantees salary increases at all institutions
CEN certification is legally required to work in any emergency department in the US
CEN certification only benefits nurses who plan to become managers
CEN certification validates specialty knowledge and is associated with improved patient outcomes and professional recognition (Correct answer)

Correct answer: CEN certification validates specialty knowledge and is associated with improved patient outcomes and professional recognition

The CEN credential demonstrates validated emergency nursing expertise and is associated with professional credibility, improved patient safety, and career advancement.

Question 127: A patient presents with sudden onset severe headache described as 'the worst headache of my life.' Which condition must be ruled out first?

Migraine with aura
Subarachnoid hemorrhage (Correct answer)
Cluster headache
Tension headache

Correct answer: Subarachnoid hemorrhage

Thunderclap headache—sudden onset severe headache reaching maximum intensity within seconds to minutes—is the classic presentation of subarachnoid hemorrhage until proven otherwise.

Question 128: Which radiation exposure scenario poses the GREATEST immediate contamination risk to emergency department staff?

A patient transported by EMS after a nuclear power plant alarm
A patient who was in a building during a dirty bomb explosion and has not been decontaminated (Correct answer)
A patient with a cardiac pacemaker exposed to a non-ionizing radiation source
A patient who received internal radiation therapy 24 hours ago

Correct answer: A patient who was in a building during a dirty bomb explosion and has not been decontaminated

An undecontaminated dirty bomb victim may carry radioactive particulate matter that poses direct contamination risk to staff.

Question 129: When using the OPQRST mnemonic, 'T' stands for:

Tolerance
Timing/time course (Correct answer)
Temperature
Treatment tried

Correct answer: Timing/time course

In OPQRST, 'T' stands for Timing — when the symptom started, whether it is constant or intermittent, and what makes it better or worse over time.

Question 130: A patient on warfarin presents with supratherapeutic INR of 9.5 and active major bleeding. What is the MOST appropriate treatment?

Hold warfarin and recheck INR in 24 hours
Administer 4-factor prothrombin complex concentrate and vitamin K (Correct answer)
Administer fresh frozen plasma alone
Administer vitamin K 10 mg IV only

Correct answer: Administer 4-factor prothrombin complex concentrate and vitamin K

4-factor PCC provides immediate reversal of warfarin effect for life-threatening bleeding, while IV vitamin K ensures sustained reversal.

Question 131: A patient presents with lithium toxicity. Which clinical finding indicates severe neurotoxicity requiring urgent intervention?

Fine hand tremor
Coarse tremor with cerebellar ataxia and altered mental status (Correct answer)
Nausea and vomiting
Polyuria and polydipsia

Correct answer: Coarse tremor with cerebellar ataxia and altered mental status

Coarse tremor, cerebellar ataxia, and altered mental status indicate severe lithium neurotoxicity, which may require hemodialysis to prevent permanent neurological damage.

Question 132: Which intervention is most appropriate for a patient with severe tricyclic antidepressant (TCA) overdose presenting with wide QRS and hypotension?

Administer physostigmine
Administer flumazenil
Administer sodium bicarbonate IV bolus (Correct answer)
Immediate defibrillation

Correct answer: Administer sodium bicarbonate IV bolus

Sodium bicarbonate alkalinizes the serum and provides sodium loading, which directly counteracts TCA-induced sodium channel blockade causing QRS widening.

Question 133: A patient presents with ascending weakness, areflexia, and a history of eating home-canned vegetables. Which toxin is most likely responsible?

Botulinum toxin (Correct answer)
Strychnine
Tetrodotoxin
Batrachotoxin

Correct answer: Botulinum toxin

Botulinum toxin from improperly canned foods causes descending or ascending flaccid paralysis by blocking acetylcholine release at neuromuscular junctions.

Question 134: A 2-year-old presents after ingesting an unknown number of iron tablets. Which finding would indicate severe toxicity?

Mild nausea and vomiting
Metabolic acidosis and cardiovascular collapse (Correct answer)
Constipation and dark stools
Mild abdominal cramping only

Correct answer: Metabolic acidosis and cardiovascular collapse

Severe iron toxicity causes metabolic acidosis, hepatotoxicity, and cardiovascular collapse, representing the systemic toxicity phase.

Question 135: Which ABG pattern is most consistent with acute respiratory failure (Type 1)?

pH 7.32, PaCO2 50, PaO2 60
pH 7.30, PaCO2 55, PaO2 80
pH 7.48, PaCO2 30, PaO2 55 (Correct answer)
pH 7.38, PaCO2 40, PaO2 58

Correct answer: pH 7.48, PaCO2 30, PaO2 55

Type 1 (hypoxemic) respiratory failure is characterized by low PaO2 with normal or low PaCO2 due to ventilation-perfusion mismatch.

Question 136: Which mechanism is most likely to cause an aortic disruption (traumatic aortic injury)?

Low-speed rear-end collision
High-speed deceleration or horizontal impact MVC (Correct answer)
Fall from standing height
Direct anterior sternal blow from a fist

Correct answer: High-speed deceleration or horizontal impact MVC

Sudden deceleration creates shear forces at the aortic isthmus (ligamentum arteriosum), making high-speed MVCs the most common cause of traumatic aortic injury.

Question 137: Which stroke syndrome presents with ipsilateral facial weakness and contralateral body weakness?

Lacunar stroke
Wallenberg syndrome
Middle cerebral artery stroke (Correct answer)
Posterior inferior cerebellar artery stroke

Correct answer: Middle cerebral artery stroke

MCA strokes often cause contralateral hemiplegia with face and arm involvement, as MCA supplies the primary motor cortex.

Question 138: A nurse administers hydroxocobalamin to a fire victim. Which side effect should be anticipated?

Skin and urine turning red or pink (Correct answer)
Paradoxical worsening of lactic acidosis
Severe hypotension
Acute kidney injury

Correct answer: Skin and urine turning red or pink

Hydroxocobalamin causes harmless red/pink discoloration of skin, mucous membranes, and urine due to the cobalt-containing compound.

Question 139: A patient presents after methanol ingestion. Which finding indicates the most serious complication?

Mild nausea and vomiting
Mild metabolic acidosis
Headache and dizziness
Visual disturbances and blurred vision (Correct answer)

Correct answer: Visual disturbances and blurred vision

Visual disturbances from methanol toxicity indicate formic acid accumulation causing optic nerve damage, which can lead to permanent blindness.

Question 140: A patient's family member demands to see the patient's chart without the patient's consent. The patient is alert and oriented. What should the nurse do?

Deny access and explain HIPAA protections to the family member (Correct answer)
Allow access if the family member is listed as next of kin
Allow access if the family member is a spouse
Allow access only after the family member shows valid ID

Correct answer: Deny access and explain HIPAA protections to the family member

An alert, oriented patient's medical information is protected under HIPAA and cannot be shared without the patient's explicit authorization.

Question 141: A 15-month-old presents with colicky abdominal pain, 'currant jelly' stools, and a sausage-shaped abdominal mass. Which diagnostic/therapeutic procedure is most appropriate?

Air or contrast enema (Correct answer)
CT scan before any intervention
Nasogastric decompression only
Emergent laparotomy

Correct answer: Air or contrast enema

Air or contrast enema is both diagnostic and therapeutic for intussusception and is the preferred initial intervention in stable patients.

Question 142: A child arrives to the ED with stridor, retractions, and oxygen saturation of 88%. Using ESI pediatric considerations, this child should be triaged as:

ESI level 2
ESI level 1 (Correct answer)
ESI level 3
ESI level 4

Correct answer: ESI level 1

Airway compromise with hypoxia in a child meets ESI level 1 criteria, requiring immediate life-saving intervention.

Question 143: A patient presents with syncope, diaphoresis, and a blood pressure of 70/40 mmHg after taking sildenafil earlier that day. What medication is contraindicated in his management?

Oxygen via nasal cannula
Aspirin 325 mg
IV normal saline bolus
Nitroglycerin for chest pain (Correct answer)

Correct answer: Nitroglycerin for chest pain

Nitrates are absolutely contraindicated within 24-48 hours of PDE-5 inhibitor use (sildenafil) due to the risk of severe refractory hypotension.

Question 144: Which ethical principle is applied when a nurse advocates for a patient who is unable to speak for themselves?

Advocacy (patient autonomy surrogate) (Correct answer)
Justice
Veracity
Nonmaleficence

Correct answer: Advocacy (patient autonomy surrogate)

Advocacy involves speaking on behalf of patients who cannot represent their own interests, upholding their rights and preferences.

Question 145: After delivery of the infant, the placenta does not deliver within 30 minutes and significant hemorrhage begins. This is consistent with:

Placenta accreta
Subinvolution of the uterus
Retained placenta (Correct answer)
Uterine inversion

Correct answer: Retained placenta

Retained placenta occurs when the placenta fails to deliver within 30 minutes of birth, causing hemorrhage that requires manual removal or surgical intervention.

Question 146: In a patient with suspected stroke, the Cincinnati Prehospital Stroke Scale assesses which three findings?

Blood pressure, blood glucose, gait
Facial droop, arm drift, abnormal speech (Correct answer)
Level of consciousness, pupil equality, speech
Headache, vision changes, unilateral weakness

Correct answer: Facial droop, arm drift, abnormal speech

The Cincinnati Prehospital Stroke Scale evaluates facial droop, arm drift, and abnormal speech; any one abnormal finding has an 80% sensitivity for stroke.

Question 147: When assessing a trauma patient using the primary survey, which action is performed FIRST?

Expose and examine the patient
Assess circulation
Establish airway with C-spine precautions (Correct answer)
Control hemorrhage

Correct answer: Establish airway with C-spine precautions

The primary survey follows the ABCDE sequence, starting with airway management while maintaining cervical spine protection.

Question 148: A burn patient has circumferential full-thickness burns to both lower extremities with absent distal pulses. The priority intervention is:

Administer vasopressors
Perform escharotomy (Correct answer)
Increase IV fluid rate immediately
Apply compression dressings

Correct answer: Perform escharotomy

Circumferential full-thickness burns cause compartment syndrome requiring escharotomy to restore distal perfusion.

Question 149: When assessing a trauma patient for occult injury using the secondary survey, the nurse must log-roll the patient to examine:

Pupillary response and cranial nerve function
Abdominal rigidity and bowel sounds
The anterior chest for paradoxical movement
The posterior thorax, lumbar spine, and perineum (Correct answer)

Correct answer: The posterior thorax, lumbar spine, and perineum

The log-roll maneuver in the secondary survey allows examination of the posterior thorax, spine, gluteal area, and perineum for occult injuries.

Question 150: When using the Broselow tape for a pediatric patient, what information does the color zone primarily determine?

Diagnosis of age-related illness
Predicted blood pressure range
Severity of injury score
Weight-based drug dosing and equipment sizes (Correct answer)

Correct answer: Weight-based drug dosing and equipment sizes

The Broselow tape uses the child's length to estimate weight and provides corresponding weight-based medication doses and equipment sizes.

Question 151: A patient with end-stage renal disease presents with peaked T waves, PR prolongation, and QRS widening on ECG. Potassium is 7.2 mEq/L. Which intervention stabilizes the cardiac membrane first?

Sodium bicarbonate 50 mEq IV
Regular insulin 10 units IV with dextrose
Calcium gluconate 1-2 g IV (Correct answer)
Sodium polystyrene sulfonate (Kayexalate) PO

Correct answer: Calcium gluconate 1-2 g IV

Calcium gluconate immediately antagonizes the cardiac membrane effects of hyperkalemia and is given first before interventions that redistribute or remove potassium.

Question 152: A patient with a known history of asthma presents with severe wheezing, accessory muscle use, and SpO2 of 88%. What is the priority intervention?

Nebulized albuterol and supplemental oxygen (Correct answer)
Intubate immediately
Chest X-ray
IV corticosteroids only

Correct answer: Nebulized albuterol and supplemental oxygen

Short-acting beta-2 agonists like albuterol combined with supplemental oxygen are the first-line treatment for acute asthma exacerbations.

Question 153: When assessing a burn patient, which formula is used to estimate the percentage of total body surface area (TBSA) burned in adults?

Galveston formula
Broselow tape
Rule of Nines (Correct answer)
Parkland formula

Correct answer: Rule of Nines

The Rule of Nines divides the adult body into regions each representing 9% (or multiples of 9%) to estimate TBSA burned.

Question 154: The ENA Standards of Emergency Nursing Practice primarily serve to:

Define the scope, competency expectations, and accountability framework for emergency nurses (Correct answer)
Establish staffing ratios mandated by law
Provide guidelines for pharmaceutical administration only
Set billing codes for emergency nursing procedures

Correct answer: Define the scope, competency expectations, and accountability framework for emergency nurses

ENA Standards define the expected level of nursing practice and professional accountability within emergency nursing.

Question 155: Which diagnostic test is the gold standard for confirming pulmonary embolism?

Chest X-ray
D-dimer blood test
CT pulmonary angiography (CTPA) (Correct answer)
VQ scan

Correct answer: CT pulmonary angiography (CTPA)

CT pulmonary angiography is the gold standard for diagnosing PE due to its high sensitivity, specificity, and wide availability.

Question 156: Which agent is classified as a Category A bioterrorism agent by the CDC, indicating the highest risk to public health?

Typhus fever
Q fever (Coxiella burnetii)
Botulinum toxin (Correct answer)
Brucella species

Correct answer: Botulinum toxin

Botulinum toxin is a CDC Category A agent due to its extreme potency, potential for aerosol dissemination, and ability to cause mass casualties.

Question 157: The Cincinnati Prehospital Stroke Scale assesses which three components?

Facial droop, arm drift, speech abnormality (Correct answer)
Gait, balance, cranial nerve function
Pupil response, grip strength, speech
Level of consciousness, motor function, eye opening

Correct answer: Facial droop, arm drift, speech abnormality

The Cincinnati Stroke Scale evaluates facial droop, arm drift, and abnormal speech to rapidly identify stroke.

Question 158: During a chemical disaster involving a nerve agent, which antidote combination is administered as first-line treatment?

Epinephrine and diphenhydramine
Atropine and pralidoxime (2-PAM) (Correct answer)
Naloxone and flumazenil
Sodium bicarbonate and calcium gluconate

Correct answer: Atropine and pralidoxime (2-PAM)

Atropine blocks muscarinic effects and pralidoxime reactivates acetylcholinesterase, making them the standard nerve agent antidotes.

Question 159: A patient is brought in by police after being found unresponsive. No identification is available. What guides the emergency nurse's decision to treat?

Substituted judgment based on bystander statements
Express consent obtained from the transporting officers
Implied consent, presuming the patient would consent if able (Correct answer)
Proxy consent from the nearest hospital administrator

Correct answer: Implied consent, presuming the patient would consent if able

In emergency situations where an unconscious patient cannot consent, implied consent doctrine authorizes treatment under the assumption a reasonable person would agree.

Question 160: Which finding on abdominal assessment is MOST associated with peritonitis?

Shifting dullness on percussion
Murphy's sign
Hyperactive bowel sounds
Rebound tenderness and involuntary guarding (Correct answer)

Correct answer: Rebound tenderness and involuntary guarding

Rebound tenderness (pain worsened by rapid release of pressure) and involuntary guarding indicate peritoneal irritation consistent with peritonitis.

Question 161: When a patient is brought to the ED following a mass casualty incident, which system guides resource allocation and prioritization of care?

HIPAA compliance framework
The START (Simple Triage and Rapid Treatment) triage system (Correct answer)
The EMTALA payment verification process
The hospital's administrative chain of command

Correct answer: The START (Simple Triage and Rapid Treatment) triage system

START triage is the primary mass casualty incident triage system used to rapidly categorize patients by survivability and urgency of need.

Question 162: A patient presents with a sudden onset of difficulty breathing, wheezing, and a nonproductive cough after exposure to an allergen. The patient has a known history of asthma. Which of the following should be administered first?

Inhaled short-acting beta agonist (SABA) (Correct answer)
Intravenous magnesium sulfate
Nebulized ipratropium
Oral corticosteroids

Correct answer: Inhaled short-acting beta agonist (SABA)

For a patient presenting with an acute asthma exacerbation triggered by an allergen, the immediate priority is to reverse bronchospasm. Inhaled short-acting beta agonists (SABAs), such as albuterol, are the first-line treatment because they rapidly relax the smooth muscles of the airways. This provides quick relief of wheezing and difficulty breathing, improving airflow and oxygenation.

Question 163: What is the relationship between theory and practice in Disaster Preparedness?

Theory is unnecessary
They are completely separate
Practice is unnecessary if you know theory
Theory provides the foundation; practice applies it to real situations (Correct answer)

Correct answer: Theory provides the foundation; practice applies it to real situations

Theory provides the conceptual foundation and principles, while practice involves applying those concepts to real-world situations. Both are essential for competence.

Question 164: In ESI triage, a patient with a minor rash, no fever, and no vital sign abnormalities who requires only a prescription renewal is best assigned:

ESI 3
ESI 2
ESI 4
ESI 5 (Correct answer)

Correct answer: ESI 5

ESI level 5 applies to patients who are stable, not high risk, and require only one resource or none — a prescription renewal with no acute findings qualifies.

Question 165: Which of the following is the correct intraosseous (IO) medication dose for pediatric epinephrine during cardiac arrest?

0.01 mg/kg of 1:1,000 solution
0.1 mg/kg of 1:1,000 solution
0.01 mg/kg of 1:10,000 solution (Correct answer)
0.1 mg/kg of 1:10,000 solution

Correct answer: 0.01 mg/kg of 1:10,000 solution

The PALS dose for epinephrine in cardiac arrest is 0.01 mg/kg (0.1 mL/kg of 1:10,000) IV/IO.

Question 166: Battle's sign (bruising over the mastoid process) is associated with which type of injury?

Basilar skull fracture (Correct answer)
Cervical spine fracture
Subdural hematoma
Epidural hematoma

Correct answer: Basilar skull fracture

Battle's sign is a delayed ecchymosis behind the ear that indicates a basilar skull fracture at the posterior fossa.

Question 167: A patient with a femur fracture develops sudden onset chest pain, tachycardia, and hypoxia 48 hours after admission. The most likely diagnosis is:

Fat embolism syndrome (Correct answer)
Tension pneumothorax
Acute MI
Aortic rupture

Correct answer: Fat embolism syndrome

Fat embolism syndrome classically presents 24-72 hours after long bone fracture with pulmonary, neurologic, and petechial manifestations.

Question 168: As a leader in the emergency department, you are tasked with improving communication among the team. Which of the following strategies would be most effective in ensuring clear communication during high-stress situations?

Implement a structured handoff protocol for all patients (Correct answer)
Limit communication to only essential information during emergencies
Encourage informal communication among staff
Assign team members to independently handle specific tasks without coordination

Correct answer: Implement a structured handoff protocol for all patients

In high-stress environments like the emergency department, structured communication tools, such as SBAR (Situation, Background, Assessment, Recommendation) or other standardized handoff protocols, are vital. These protocols ensure that critical patient information is conveyed accurately, completely, and efficiently between healthcare providers during transitions of care. This reduces errors, improves patient safety, and enhances overall team coordination and patient outcomes.

Question 169: Which fluid resuscitation strategy is preferred for traumatic hemorrhagic shock to prevent the 'lethal triad'?

Large-volume crystalloid (3:1 rule)
Colloid-based resuscitation with albumin
Hypertonic saline 7.5% as primary resuscitative fluid
Permissive hypotension with balanced blood product resuscitation (Correct answer)

Correct answer: Permissive hypotension with balanced blood product resuscitation

Permissive hypotension (target SBP 80-90 mmHg) combined with balanced blood products (1:1:1 pRBC:FFP:platelets) prevents the lethal triad of hypothermia, acidosis, and coagulopathy.

Question 170: What is the primary purpose of professional certification in Disaster Preparedness?

To meet legal requirements only
To increase salary automatically
To validate competency and knowledge in the field (Correct answer)
To replace practical experience

Correct answer: To validate competency and knowledge in the field

Certification validates that a professional has met established standards of knowledge and competency in Disaster Preparedness.

Question 171: Which practice best exemplifies cultural competence in the emergency department?

Asking family members to translate all sensitive medical information
Using professional medical interpreters for patients with limited English proficiency (Correct answer)
Providing written materials only in English as the standard language
Treating all patients identically regardless of cultural background

Correct answer: Using professional medical interpreters for patients with limited English proficiency

Professional interpreters ensure accurate communication while protecting patient privacy and safety; using family members risks misinterpretation and privacy violations.

Question 172: Which finding is MOST concerning for cyanide toxicity in a patient rescued from a house fire?

PaO2 of 55 mmHg on room air
Persistent lactic acidosis despite high-flow oxygen (Correct answer)
Singed nasal hairs and hoarse voice
Carboxyhemoglobin level of 25%

Correct answer: Persistent lactic acidosis despite high-flow oxygen

Persistent lactic acidosis unresponsive to oxygen indicates cellular hypoxia from cyanide inhibiting cytochrome oxidase, not just carbon monoxide toxicity.

Question 173: A patient arrives with an open femur fracture and active arterial bleeding from the thigh. The first action is:

Splint the fracture immediately
Obtain type and crossmatch
Irrigate the wound and apply a sterile dressing
Apply direct pressure and a tourniquet proximal to the wound (Correct answer)

Correct answer: Apply direct pressure and a tourniquet proximal to the wound

Hemorrhage control via direct pressure and tourniquet application is the immediate life-saving priority before any other intervention.

Question 174: What is the most effective way to prevent healthcare-associated infections?

Taking antibiotics
Proper hand hygiene (Correct answer)
Cleaning the floor
Wearing gloves at all times

Correct answer: Proper hand hygiene

Hand hygiene (washing with soap and water or using alcohol-based hand rub) is the single most effective measure for preventing the spread of infections in healthcare settings.

Question 175: Which electrolyte abnormality is most commonly associated with pyloric stenosis?

Hyperchloremic metabolic alkalosis
Hypokalemic hypochloremic metabolic alkalosis (Correct answer)
Hyponatremic metabolic acidosis
Hyperkalemic metabolic acidosis

Correct answer: Hypokalemic hypochloremic metabolic alkalosis

Persistent vomiting of gastric contents in pyloric stenosis causes loss of H⁺ and Cl⁻, resulting in hypokalemic hypochloremic metabolic alkalosis.

Question 176: A hospital is considering activating its shelter-in-place protocol. Which disaster scenario MOST warrants this response?

An approaching category 3 hurricane requiring regional evacuation
An outdoor chemical plume drifting toward the hospital from a nearby plant (Correct answer)
A prolonged power outage affecting the entire city block
A structural fire in the hospital's east wing

Correct answer: An outdoor chemical plume drifting toward the hospital from a nearby plant

Shelter-in-place is most appropriate when moving patients outside would increase exposure risk, such as with an approaching outdoor chemical release.

Question 177: A nurse is preparing a patient for elective synchronized cardioversion for atrial flutter. Which precaution is essential?

Administer adenosine 12 mg IV prior to the procedure
Ensure the patient is on therapeutic anticoagulation or has had a recent TEE (Correct answer)
Avoid sedation to monitor patient response during the procedure
Set the defibrillator to the highest energy setting

Correct answer: Ensure the patient is on therapeutic anticoagulation or has had a recent TEE

Before elective cardioversion of atrial flutter, anticoagulation or a transesophageal echocardiogram (TEE) to rule out atrial thrombus is essential to prevent thromboembolism.

Question 178: Why is continuing education important in Toxicology?

Only for re-certification requirements
To network only
It is not important after certification
To stay current with evolving standards and practices (Correct answer)

Correct answer: To stay current with evolving standards and practices

Continuing education keeps professionals updated with the latest developments, standards, and best practices in their field.

Certified Emergency Nurse (CEN) Examination

The CEN exam, administered by the Board of Certification for Emergency Nursing (BCEN), validates specialized knowledge and clinical skills across 10 emergency nursing domains including cardiovascular, respiratory, neurological, and other emergency care competencies.

175

Questions

180 min

Time Limit

71%

To Pass

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