NAEMT Advanced Medical Life Support (AMLS) Exam — Questions and Answers

Question 1: Which of the following is a potential side effect of long-term oxygen therapy?

Hypothermia
Muscle cramps
Hypercapnia (increased CO2 levels) (Correct answer)
Weight gain

Correct answer: Hypercapnia (increased CO2 levels)

In patients with chronic obstructive pulmonary disease (COPD) who have chronic hypercapnia, long-term oxygen therapy can sometimes suppress the hypoxic drive to breathe. This can lead to decreased ventilation and an increase in carbon dioxide (CO2) levels in the blood, resulting in hypercapnia. Careful monitoring of blood gas levels is essential to prevent this complication.

Question 2: Which factor increases the risk of developing a pulmonary embolism?

Dehydration
Insomnia
Sedentary lifestyle (Correct answer)
High protein diet

Correct answer: Sedentary lifestyle

A sedentary lifestyle significantly increases the risk of developing a pulmonary embolism because prolonged immobility leads to blood stasis, particularly in the deep veins of the legs. This lack of movement promotes the formation of deep vein thrombosis (DVT), which can then dislodge and travel to the lungs, causing a pulmonary embolism. Regular movement and activity help prevent blood clot formation.

Question 3: Which neuromuscular blocking agent is contraindicated in burn patients, crush injury, or hyperkalemia due to risk of fatal hyperkalemia?

Cisatracurium
Vecuronium
Rocuronium
Succinylcholine (Correct answer)

Correct answer: Succinylcholine

Succinylcholine causes potassium release from acetylcholine receptors; in burns, crush injuries, or upregulated receptors, this can cause fatal hyperkalemia.

Question 4: Which of the following is a vital sign that is typically measured during a patient assessment?

Weight
Skin color
Blood pressure (Correct answer)
Pupil size

Correct answer: Blood pressure

Vital signs are objective measurements of the body's most basic functions, indicating the state of a patient's health. Blood pressure is a key vital sign, along with heart rate, respiratory rate, and body temperature, providing crucial information about cardiovascular function. These measurements help healthcare providers monitor a patient's condition and detect changes.

Question 5: A patient with known hypothyroidism presents unresponsive with bradycardia, hypothermia (temp 92°F), hypoventilation, and hypotension. Which condition does this presentation indicate?

Thyroid storm
Myxedema coma (Correct answer)
Addisonian crisis
Hypoglycemic coma

Correct answer: Myxedema coma

Myxedema coma is a life-threatening complication of severe hypothyroidism characterized by altered mental status, hypothermia, bradycardia, hypoventilation, and hypotension, often triggered by infection or medication non-compliance.

Question 6: A patient presents with sudden-onset tearing chest pain radiating to the back. Which condition should be suspected first?

Tension pneumothorax
Pulmonary contusion
Pericarditis
Acute aortic dissection (Correct answer)

Correct answer: Acute aortic dissection

Tearing or ripping chest pain radiating to the back is the classic presentation of acute aortic dissection.

Question 7: What is the primary cause of emphysema, a type of COPD?

Viral infection
Bacterial infection
Air pollution
Long-term smoking (Correct answer)

Correct answer: Long-term smoking

Long-term smoking is overwhelmingly the primary cause of emphysema, a major component of COPD. The harmful chemicals in cigarette smoke damage the alveoli (air sacs) in the lungs, leading to their destruction and loss of elasticity. This damage impairs oxygen exchange and makes breathing progressively harder, leading to chronic respiratory distress.

Question 8: Which of the following medications is commonly prescribed for preventing blood clots in patients at risk of pulmonary embolism?

Beta-blockers
Anticoagulants (e.g., warfarin, heparin) (Correct answer)
Antibiotics
Statins

Correct answer: Anticoagulants (e.g., warfarin, heparin)

Anticoagulants, such as warfarin and heparin, are medications specifically designed to prevent the formation and growth of blood clots. By interfering with the body's clotting cascade, they reduce the risk of deep vein thrombosis (DVT) and subsequent pulmonary embolism in patients identified as being at risk. These medications are crucial for prophylaxis and treatment of thrombotic events.

Question 9: Which complication is indicated by a sudden rise in peak airway pressure in a ventilated patient after ETT placement?

Tension pneumothorax, bronchospasm, or tube obstruction (Correct answer)
Pulmonary edema resolution
Esophageal intubation
Hypoventilation

Correct answer: Tension pneumothorax, bronchospasm, or tube obstruction

Sudden high peak airway pressures after intubation suggest tube obstruction, acute bronchospasm, right mainstem intubation, or tension pneumothorax.

Question 10: What is the most common cause of pulmonary embolism (PE)?

Blood clot (deep vein thrombosis) (Correct answer)
Tumor embolism
Fat embolism
Air embolism

Correct answer: Blood clot (deep vein thrombosis)

The most common cause of a pulmonary embolism (PE) is a blood clot, specifically one that originates in the deep veins of the legs or pelvis, a condition known as deep vein thrombosis (DVT). This clot then breaks off, travels through the bloodstream, and lodges in the pulmonary arteries, blocking blood flow to the lungs. Other types of emboli are far less common.

Question 11: Which finding on an arterial blood gas (ABG) is most consistent with diabetic ketoacidosis (DKA)?

pH 7.48, PaCO2 50 mmHg, HCO3 34 mEq/L
pH 7.50, PaCO2 30 mmHg, HCO3 22 mEq/L
pH 7.35, PaCO2 40 mmHg, HCO3 24 mEq/L
pH 7.22, PaCO2 20 mmHg, HCO3 8 mEq/L (Correct answer)

Correct answer: pH 7.22, PaCO2 20 mmHg, HCO3 8 mEq/L

DKA produces an anion-gap metabolic acidosis with low pH, low bicarbonate, and compensatory respiratory alkalosis (low PaCO2 from Kussmaul respirations), making option B the characteristic ABG pattern.

Question 12: A 55-year-old patient on long-term corticosteroids presents with hypotension, weakness, nausea, and hypoglycemia after abruptly stopping their medication. Which condition is most likely?

Pheochromocytoma
Cushing's syndrome exacerbation
Addisonian (adrenal) crisis (Correct answer)
Thyroid storm

Correct answer: Addisonian (adrenal) crisis

Adrenal crisis occurs when exogenous corticosteroids are abruptly withdrawn, causing acute adrenal insufficiency with hypotension, weakness, nausea, vomiting, and hypoglycemia due to loss of cortisol and aldosterone.

Question 13: What does the acronym "SAMPLE" stand for in patient history taking?

Symptoms, Age, Medical history, Physical exam, Last treatment, Examination
Signs, Assessment, Medications, Pulse, Last intake, Examination
Signs, Allergies, Medications, Past medical history, Last oral intake, Events (Correct answer)
Safety, Age, Medications, Plan, Examination

Correct answer: Signs, Allergies, Medications, Past medical history, Last oral intake, Events

The SAMPLE acronym is a mnemonic used in patient assessment to gather a comprehensive medical history quickly and systematically. It stands for Signs/Symptoms, Allergies, Medications, Past medical history, Last oral intake, and Events leading up to the present illness or injury. This structured approach helps ensure no critical information is missed during history taking.

Question 14: An ETCO2 reading of 0 mmHg immediately after intubation indicates what?

ETT cuff leak
Right mainstem intubation
Esophageal intubation (Correct answer)
Correct tracheal placement

Correct answer: Esophageal intubation

An ETCO2 of 0 or near-zero after intubation indicates esophageal placement, as no CO2 is exhaled from the stomach.

Question 15: Wernicke's encephalopathy is classically caused by a deficiency of which vitamin?

Cobalamin (B12)
Pyridoxine (B6)
Thiamine (B1) (Correct answer)
Niacin (B3)

Correct answer: Thiamine (B1)

Wernicke's encephalopathy results from thiamine (B1) deficiency, commonly seen in alcoholism, and presents with the classic triad of ataxia, ophthalmoplegia, and confusion.

Question 16: What does OPQRST stand for when assessing a patient’s pain?

Onset, Pulse, Quality, Reflex, Sensation, Temperature
Onset, Provocation, Quality, Radiation, Severity, Time (Correct answer)
Observation, Provocation, Quantification, Radiation, Sensitivity, Time
Observation, Physical exam, Quantification, Severity, Treatment

Correct answer: Onset, Provocation, Quality, Radiation, Severity, Time

The OPQRST mnemonic is a standardized tool used by healthcare professionals to thoroughly assess a patient's pain. It guides the inquiry into the Onset of pain, what Provokes or palliates it, the Quality of the pain, if it Radiates, its Severity on a scale, and the Time or duration it has been present. This comprehensive approach helps in diagnosing and managing pain effectively.

Question 17: An elderly patient with known type 2 diabetes is found unresponsive with a blood glucose of 950 mg/dL, serum osmolality of 365 mOsm/kg, and no significant ketonuria. What is the priority action?

IV fluid resuscitation with 0.9% normal saline (Correct answer)
Intubation and hyperventilation
Immediate IV insulin bolus 10 units
Sodium bicarbonate 1 mEq/kg IV

Correct answer: IV fluid resuscitation with 0.9% normal saline

HHS requires aggressive IV fluid resuscitation as the first intervention to correct severe hyperosmolality and dehydration before initiating insulin, which can cause dangerous osmotic shifts if given prematurely.

Question 18: What is the significance of a serum lactate greater than 4 mmol/L in a shock patient?

Is a normal finding in exercise-induced stress
Indicates severe tissue hypoperfusion and high mortality risk (Correct answer)
Confirms diabetic ketoacidosis
Indicates respiratory alkalosis

Correct answer: Indicates severe tissue hypoperfusion and high mortality risk

A lactate >4 mmol/L reflects severe anaerobic metabolism from tissue hypoperfusion and is associated with significantly increased mortality.

Question 19: What is the primary goal of early reperfusion therapy in STEMI management?

Restore coronary blood flow to salvage myocardium (Correct answer)
Prevent ventricular hypertrophy
Reduce systemic blood pressure
Decrease heart rate

Correct answer: Restore coronary blood flow to salvage myocardium

Early reperfusion aims to restore coronary blood flow to limit infarct size and salvage viable myocardium.

Question 20: Which AMLS assessment finding is most consistent with a lesion in the brainstem?

Abnormal respiratory patterns and cranial nerve deficits (Correct answer)
Cortical blindness only
Hemiplegia with preserved consciousness
Aphasia without motor deficits

Correct answer: Abnormal respiratory patterns and cranial nerve deficits

Brainstem lesions typically cause abnormal respiratory patterns, cranial nerve deficits, and altered consciousness due to the reticular activating system.

Question 21: Which of the following conditions is caused by inflammation of the bronchi?

Tuberculosis
Bronchitis (Correct answer)
Pneumonia
Pleurisy

Correct answer: Bronchitis

Bronchitis is an inflammation of the lining of the bronchial tubes, which carry air to and from the lungs. This inflammation causes symptoms such as coughing, mucus production, and shortness of breath. It can be acute, often following a viral infection, or chronic, commonly linked to smoking and exposure to irritants.

Question 22: Which clinical finding indicates a positive response to a fluid challenge in a hypotensive patient?

Rise in temperature
Increase in pulse pressure and improvement in mental status (Correct answer)
Decrease in heart rate only
Normalization of respiratory rate alone

Correct answer: Increase in pulse pressure and improvement in mental status

A positive fluid response is indicated by improved perfusion markers such as increased pulse pressure, improved mentation, and decreased heart rate.

Question 23: Pulsus paradoxus greater than 10 mmHg is a classic finding in which condition?

Aortic stenosis
Cardiac tamponade (Correct answer)
Hypertensive emergency
Tension pneumothorax

Correct answer: Cardiac tamponade

Pulsus paradoxus >10 mmHg, an exaggerated fall in BP during inspiration, is a classic sign of cardiac tamponade.

Question 24: What is the primary advantage of video laryngoscopy over direct laryngoscopy in difficult airways?

Can be used without preoxygenation
Faster intubation time in all patients
Improved glottic visualization without requiring direct line of sight (Correct answer)
Eliminates need for NMBA during RSI

Correct answer: Improved glottic visualization without requiring direct line of sight

Video laryngoscopy provides a magnified indirect view of the glottis via camera, improving visualization in difficult airways without requiring optimal neck positioning.

Question 25: Status epilepticus is defined as a seizure lasting longer than how many minutes?

10 minutes
2 minutes
5 minutes (Correct answer)
30 minutes

Correct answer: 5 minutes

Status epilepticus is defined as continuous seizure activity lasting 5 or more minutes or two seizures without recovery of consciousness between them.

Question 26: A patient presents with hyperthermia, muscle rigidity, and altered mental status after starting an antipsychotic. This is most consistent with:

Malignant hyperthermia
Serotonin syndrome
Anticholinergic toxidrome
Neuroleptic malignant syndrome (NMS) (Correct answer)

Correct answer: Neuroleptic malignant syndrome (NMS)

NMS is caused by dopamine blockade from antipsychotics, presenting with hyperthermia, lead-pipe rigidity, altered mentation, and autonomic instability.

Question 27: Which supraglottic airway device is considered an advanced alternative to BVM ventilation for cardiac arrest?

Endotracheal tube only
Nasopharyngeal airway alone
King LT or LMA (laryngeal mask airway) (Correct answer)
Oropharyngeal airway

Correct answer: King LT or LMA (laryngeal mask airway)

Supraglottic airways like the King LT and LMA can be rapidly placed without visualization and provide effective ventilation during CPR.

Question 28: Which finding differentiates pericarditis from MI on an ECG?

ST elevation in only inferior leads
Q waves in V1-V4
Diffuse saddle-shaped ST elevation across multiple leads (Correct answer)
ST depression in aVR

Correct answer: Diffuse saddle-shaped ST elevation across multiple leads

Pericarditis causes diffuse saddle-shaped ST elevation in most leads, unlike the localized ST elevation seen in MI.

Question 29: Which of the following is part of the primary survey in patient assessment?

X-ray examination
Checking airway, breathing, and circulation (ABC) (Correct answer)
Detailed medical history
Blood pressure measurement

Correct answer: Checking airway, breathing, and circulation (ABC)

The primary survey in patient assessment focuses on identifying and immediately managing life-threatening conditions. Checking the patient's Airway, Breathing, and Circulation (ABC) is the cornerstone of this survey, as these are the most critical functions for survival. Addressing any issues with ABC takes precedence over other assessments to stabilize the patient.

Question 30: Which of the following signs suggests herniation in a deteriorating stroke patient?

Alternating pupil dilation
Bilateral miosis with normal consciousness
Ipsilateral dilated and fixed pupil with contralateral hemiplegia (Correct answer)
Bilateral mydriasis with normal motor function

Correct answer: Ipsilateral dilated and fixed pupil with contralateral hemiplegia

Uncal herniation causes compression of CN III, producing an ipsilateral fixed dilated pupil and contralateral hemiplegia.

Question 31: What is the target mean arterial pressure (MAP) in septic shock management per Surviving Sepsis guidelines?

90 mmHg or greater
80 mmHg or greater
65 mmHg or greater (Correct answer)
50 mmHg or greater

Correct answer: 65 mmHg or greater

The Surviving Sepsis Campaign recommends maintaining a MAP of 65 mmHg or greater in septic shock to ensure organ perfusion.

Question 32: Which of the following is a primary symptom of pulmonary embolism?

Difficulty breathing (Correct answer)
Coughing up blood
Chest pain
High fever

Correct answer: Difficulty breathing

Difficulty breathing, or dyspnea, is a primary and often sudden symptom of pulmonary embolism (PE). This occurs because the blood clot blocks blood flow to a portion of the lung, impairing oxygen exchange and causing the body to feel starved for air. Other common symptoms include chest pain, rapid heart rate, and sometimes coughing up blood.

Question 33: Which condition is an absolute contraindication to nasopharyngeal airway insertion?

Nasal congestion
Recent nasal surgery
Intact gag reflex
Suspected basal skull fracture (Correct answer)

Correct answer: Suspected basal skull fracture

Suspected basal skull fracture is an absolute contraindication to NPA insertion due to the risk of intracranial placement through the cribriform plate.

Question 34: Which ECG finding is most consistent with an acute ST-elevation myocardial infarction (STEMI) in the inferior leads?

Right bundle branch block
Prolonged QT interval
ST depression in leads V1-V4
ST elevation in leads II, III, and aVF (Correct answer)

Correct answer: ST elevation in leads II, III, and aVF

Inferior STEMI presents with ST elevation in leads II, III, and aVF, reflecting ischemia of the right coronary artery territory.

Question 35: What is the initial priority in managing a patient in hyperosmolar hyperglycemic state (HHS) with a serum osmolality of 345 mOsm/kg and blood glucose of 820 mg/dL?

Aggressive IV fluid resuscitation with isotonic saline (Correct answer)
Sodium bicarbonate infusion
Aggressive IV insulin bolus
Immediate hemodialysis

Correct answer: Aggressive IV fluid resuscitation with isotonic saline

The cornerstone of HHS management is aggressive IV fluid resuscitation with isotonic saline to correct profound dehydration and hyperosmolality before insulin administration, which can precipitate cerebral edema if given first.

Question 36: Which intervention is definitive for obstructive shock caused by tension pneumothorax?

Pericardiocentesis
IV fluid resuscitation
Needle decompression followed by chest tube thoracostomy (Correct answer)
Immediate intubation

Correct answer: Needle decompression followed by chest tube thoracostomy

Needle decompression (2nd ICS MCL or 4th/5th ICS AAL) releases trapped air, converting tension pneumothorax to simple pneumothorax, followed by chest tube.

Question 37: Decerebrate posturing in a comatose patient indicates injury at which neurological level?

Cortical level only
Peripheral nervous system
At or below the midbrain (diencephalon to brainstem) (Correct answer)
Spinal cord at C2

Correct answer: At or below the midbrain (diencephalon to brainstem)

Decerebrate posturing (extension of all extremities) indicates injury at the midbrain or below, signaling severe brainstem dysfunction.

Question 38: What is the specific antidote for opioid overdose with respiratory depression?

Naloxone (Narcan) (Correct answer)
Physostigmine
N-acetylcysteine
Flumazenil

Correct answer: Naloxone (Narcan)

Naloxone competitively antagonizes opioid receptors and rapidly reverses respiratory depression, miosis, and altered consciousness in opioid overdose.

Question 39: Carbon monoxide poisoning should be treated with which intervention?

100% oxygen via non-rebreather mask or hyperbaric oxygen (Correct answer)
Naloxone and sodium bicarbonate
Bronchodilators and corticosteroids
Supplemental oxygen via nasal cannula only

Correct answer: 100% oxygen via non-rebreather mask or hyperbaric oxygen

High-flow 100% oxygen competes with CO for hemoglobin binding and reduces CO half-life from 5 hours to approximately 60–90 minutes.

Question 40: A patient presents with fever of 104°F, tachycardia (HR 148), atrial fibrillation, agitation, and exophthalmos. Which endocrine emergency should be suspected?

Myxedema coma
Hyperosmolar hyperglycemic state
Adrenal crisis
Thyroid storm (thyrotoxic crisis) (Correct answer)

Correct answer: Thyroid storm (thyrotoxic crisis)

Thyroid storm presents with hyperpyrexia, extreme tachycardia, dysrhythmias (especially atrial fibrillation), agitation, and signs of hyperthyroidism such as exophthalmos, reflecting life-threatening excess thyroid hormone activity.

Question 41: What is the first step in a patient assessment?

Performing a physical exam
Performing a scene size-up (Correct answer)
Administering treatment
Obtaining a medical history

Correct answer: Performing a scene size-up

In emergency medical care, the very first step in patient assessment is performing a scene size-up. This involves quickly assessing the safety of the scene for both the rescuer and the patient, identifying potential hazards, and determining the nature of the illness or mechanism of injury. Ensuring scene safety is paramount before approaching the patient and initiating direct care.

Question 42: A septic patient with a lactate of 4.2 mmol/L and hypotension despite 30 mL/kg IV fluids should receive which additional intervention?

Additional 30 mL/kg fluid bolus
Sodium bicarbonate infusion
Empiric antifungal therapy
Initiate vasopressors (norepinephrine) (Correct answer)

Correct answer: Initiate vasopressors (norepinephrine)

Persistent hypotension after adequate fluid resuscitation in septic shock requires vasopressors, with norepinephrine as first-line.

Question 43: A patient presents with fever, tachycardia, hypertension, mydriasis, and dry flushed skin. Which toxidrome is most likely?

Anticholinergic toxidrome (Correct answer)
Opioid toxidrome
Cholinergic toxidrome
Sedative-hypnotic toxidrome

Correct answer: Anticholinergic toxidrome

The anticholinergic toxidrome is described as 'hot as a hare, dry as a bone, blind as a bat, red as a beet, mad as a hatter.'

Question 44: Which substance causes profound metabolic acidosis with an elevated anion gap, optic nerve damage, and blindness?

Methanol (Correct answer)
Ethanol
Ethylene glycol
Isopropanol

Correct answer: Methanol

Methanol is metabolized to formaldehyde and formic acid, which damages the optic nerve and causes high anion gap metabolic acidosis.

Question 45: What technique is recommended when performing BVM ventilation to optimize mask seal and airway patency?

Jaw thrust without mask seal check
Head-tilt chin-lift with mask only
One hand holding mask, other hand squeezing bag
Two-person technique with E-C clamp grip and jaw thrust (Correct answer)

Correct answer: Two-person technique with E-C clamp grip and jaw thrust

The two-person BVM technique with E-C clamp and jaw thrust provides superior mask seal and airway alignment compared to single-operator technique.

Question 46: Which symptom cluster best describes normal pressure hydrocephalus (NPH)?

Sudden severe headache, vomiting, and photophobia
Gait disturbance, urinary incontinence, and dementia (Correct answer)
Visual changes and diplopia only
Unilateral weakness and facial droop

Correct answer: Gait disturbance, urinary incontinence, and dementia

NPH classically presents with the triad of gait disturbance (magnetic gait), urinary incontinence, and cognitive decline (dementia).

Question 47: Which type of shock is characterized by decreased SVR (systemic vascular resistance) and increased cardiac output?

Obstructive shock
Distributive shock (Correct answer)
Hypovolemic shock
Cardiogenic shock

Correct answer: Distributive shock

Distributive shock (e.g., septic, anaphylactic, neurogenic) causes massive vasodilation, reducing SVR while initially increasing cardiac output.

Question 48: In rapid sequence intubation (RSI), what is the purpose of the defasciculating dose of a non-depolarizing agent before succinylcholine?

Prevent fasciculations and associated intracranial and intraocular pressure rise (Correct answer)
Reduce risk of bradycardia
Prevent bronchospasm
Speed onset of succinylcholine

Correct answer: Prevent fasciculations and associated intracranial and intraocular pressure rise

A defasciculating dose of a non-depolarizing NMBA blunts the muscle fasciculations from succinylcholine, which can transiently raise ICP and IOP.

Question 49: What does a GCS score of 8 or less indicate regarding airway management?

No intervention is needed if the patient is breathing
Perform jaw thrust without airway adjunct
Apply nasal cannula oxygen only
The patient likely cannot protect their airway and may need intubation (Correct answer)

Correct answer: The patient likely cannot protect their airway and may need intubation

A GCS of 8 or less is a widely used threshold indicating inability to protect the airway and is an indication for intubation.

Question 50: What is the recommended time window for administering IV alteplase (tPA) in ischemic stroke from symptom onset?

Within 12 hours
Within 3 to 4.5 hours (Correct answer)
Within 6 hours
Within 1 hour

Correct answer: Within 3 to 4.5 hours

IV alteplase can be administered within 3 to 4.5 hours of symptom onset in eligible ischemic stroke patients.

Question 51: A patient in decompensated shock has cold, mottled extremities and a capillary refill of 5 seconds. What organ is most immediately at risk?

Skin (pressure ulcers)
Kidneys (acute tubular necrosis) (Correct answer)
Brain (dementia)
Liver (fatty change)

Correct answer: Kidneys (acute tubular necrosis)

Prolonged hypoperfusion in shock preferentially damages the kidneys, causing acute tubular necrosis and acute kidney injury.

NAEMT Advanced Medical Life Support (AMLS) Exam

The NAEMT AMLS exam evaluates an EMS practitioner's ability to assess and manage common medical emergencies using the AMLS Assessment Pathway, covering respiratory, cardiac, neurological, toxicological, and shock-related conditions.

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60 min

Time Limit

80%

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