NBCRNA National Certification Examination (NCE) — Questions and Answers

Question 1: What is the nurse's primary responsibility in patient education?

Advocating for patient safety and well-being (Correct answer)
Completing documentation as quickly as possible
Following physician orders without question
Minimizing time spent with each patient

Correct answer: Advocating for patient safety and well-being

In patient education, the nurse's primary responsibility is advocating for patient safety and well-being through competent, evidence-based care.

Question 2: What is the primary concern with using nitrous oxide in a patient with a bowel obstruction?

Nitrous oxide causes severe nausea increasing aspiration risk
Nitrous oxide inhibits methionine synthase leading to bowel ischemia
Nitrous oxide increases lower esophageal sphincter tone
Nitrous oxide diffuses into gas-filled spaces and expands bowel volume (Correct answer)

Correct answer: Nitrous oxide diffuses into gas-filled spaces and expands bowel volume

Nitrous oxide is 34 times more soluble than nitrogen and rapidly diffuses into air-filled cavities, dramatically increasing bowel gas volume and pressure.

Question 3: What is the primary mechanism of action of local anesthetics?

Blockade of voltage-gated sodium channels preventing depolarization (Correct answer)
Enhancement of GABA-A receptor chloride conductance
Blockade of potassium channels preventing repolarization
Inhibition of acetylcholinesterase at the neuromuscular junction

Correct answer: Blockade of voltage-gated sodium channels preventing depolarization

Local anesthetics reversibly block voltage-gated sodium channels from the intracellular side, preventing Na+ influx and action potential propagation along the nerve.

Question 4: Which complication occurs in nearly 100% of interscalene brachial plexus blocks?

Ipsilateral Horner syndrome
Pneumothorax
Ipsilateral phrenic nerve palsy (Correct answer)
Recurrent laryngeal nerve block

Correct answer: Ipsilateral phrenic nerve palsy

The phrenic nerve (C3-C5) runs directly adjacent to the brachial plexus at the interscalene level and is invariably blocked, causing ipsilateral hemidiaphragm paresis—a critical consideration in patients with contralateral phrenic nerve palsy or severe pulmonary disease.

Question 5: How should a nurse respond to a change in patient condition during care planning?

Wait for the physician to notice during rounds
Ask a family member for their opinion first
Immediately assess, intervene if within scope, and notify the provider using SBAR (Correct answer)
Document the change and move to the next patient

Correct answer: Immediately assess, intervene if within scope, and notify the provider using SBAR

Prompt assessment, appropriate intervention, and structured communication using SBAR ensures rapid response to changes in patient condition.

Question 6: During an axillary brachial plexus block, which nerve most commonly requires a separate injection because it exits the neurovascular sheath proximal to the standard injection site?

Musculocutaneous nerve (Correct answer)
Radial nerve
Median nerve
Ulnar nerve

Correct answer: Musculocutaneous nerve

The musculocutaneous nerve typically exits the brachial plexus sheath high in the axilla and enters the coracobrachialis muscle before the standard axillary injection site, requiring a separate injection into that muscle for complete block.

Question 7: What is the nurse's primary responsibility in care planning?

Advocating for patient safety and well-being (Correct answer)
Following physician orders without question
Completing documentation as quickly as possible
Minimizing time spent with each patient

Correct answer: Advocating for patient safety and well-being

In care planning, the nurse's primary responsibility is advocating for patient safety and well-being through competent, evidence-based care.

Question 8: Which clinical sign is most specific for identifying right mainstem bronchus intubation?

Presence of end-tidal CO2
Decreased or absent breath sounds on the left (Correct answer)
SpO2 below 90%
High peak airway pressure

Correct answer: Decreased or absent breath sounds on the left

Absent or markedly diminished breath sounds on the left side upon auscultation is the most specific clinical indicator of right mainstem bronchus intubation.

Question 9: What infection control measure is most critical during health assessment procedures?

Using hand sanitizer once per shift
Wearing gloves only when visible contamination is present
Wearing a mask at all times regardless of procedure
Performing hand hygiene before and after every patient contact (Correct answer)

Correct answer: Performing hand hygiene before and after every patient contact

Hand hygiene before and after every patient contact is the single most effective measure for preventing healthcare-associated infections.

Question 10: What is the nurse's primary responsibility in medication administration?

Advocating for patient safety and well-being (Correct answer)
Completing documentation as quickly as possible
Minimizing time spent with each patient
Following physician orders without question

Correct answer: Advocating for patient safety and well-being

In medication administration, the nurse's primary responsibility is advocating for patient safety and well-being through competent, evidence-based care.

Question 11: How does the AANA advocate for CRNAs?

Promoting the inclusion of CRNAs in healthcare policies (Correct answer)
Offering direct legal representation
Providing malpractice insurance
Lobbying for full practice authority at the state and federal levels (Correct answer)

Correct answer: Promoting the inclusion of CRNAs in healthcare policies

The AANA actively advocates for CRNAs by lobbying legislative bodies at both state and federal levels to secure full practice authority. This involves working to remove outdated physician supervision requirements, allowing CRNAs to practice to the full extent of their education and training. Their advocacy ensures CRNAs can contribute optimally to healthcare delivery and patient access to care.

Question 12: A patient develops bronchospasm during general anesthesia. Which inhaled agent, if already in use, provides direct bronchodilation and should be continued?

Sevoflurane (Correct answer)
Nitrous oxide
Desflurane
Halothane

Correct answer: Sevoflurane

Sevoflurane provides bronchodilation through smooth muscle relaxation and is the preferred volatile agent in patients at risk for bronchospasm.

Question 13: According to ASRA guidelines, what is the minimum time to wait after the last prophylactic dose of LMWH (e.g., enoxaparin 40 mg daily) before performing neuraxial anesthesia?

12 hours (Correct answer)
48 hours
24 hours
6 hours

Correct answer: 12 hours

ASRA recommends a minimum 12-hour interval after the last prophylactic LMWH dose before neuraxial needle placement to reduce the risk of epidural hematoma.

Question 14: Which federal policy supports the autonomy of CRNAs in certain settings?

The Affordable Care Act (ACA)
The Medicare “Opt-Out” Rule (Correct answer)
The Medicare Access and CHIP Reauthorization Act (MACRA)
The Controlled Substances Act

Correct answer: The Medicare “Opt-Out” Rule

The Medicare “Opt-Out” Rule is a federal policy that allows state governors to exempt CRNAs from the Medicare requirement for physician supervision. By opting out, states can permit CRNAs to practice more autonomously in facilities that receive Medicare reimbursement. This rule has been instrumental in expanding CRNA practice authority in many states, particularly in rural and underserved areas.

Question 15: Which Cormack-Lehane grade indicates the most difficult direct laryngoscopy, with only the posterior commissure or no laryngeal structures visible?

Grade II
Grade I
Grade IIa
Grade III–IV (Correct answer)

Correct answer: Grade III–IV

Cormack-Lehane Grades III (only epiglottis visible) and IV (no laryngeal structures visible) indicate the most difficult direct laryngoscopic views.

Question 16: What dermatomal level of spinal anesthesia is typically required for a cesarean section?

T4 (Correct answer)
T8
T10
T6

Correct answer: T4

A sensory block to T4 (nipple level) is required for cesarean section to ensure adequate coverage of the uterus, peritoneum, and any diaphragmatic irritation.

Question 17: Ketamine's dissociative anesthetic effect is primarily mediated through which receptor?

Opioid receptor agonism
GABA-A receptor potentiation
NMDA receptor antagonism (Correct answer)
Alpha-2 receptor agonism

Correct answer: NMDA receptor antagonism

Ketamine produces dissociative anesthesia primarily by non-competitive antagonism of NMDA receptors, blocking glutamate-mediated excitation.

Question 18: What is the primary purpose of applying cricoid pressure (Sellick maneuver) during RSI?

To prevent laryngospasm during induction
To facilitate visualization of the vocal cords during laryngoscopy
To compress the esophagus against the cervical vertebra to prevent passive regurgitation (Correct answer)
To reduce the dose of induction agent needed

Correct answer: To compress the esophagus against the cervical vertebra to prevent passive regurgitation

Cricoid pressure occludes the esophageal lumen by pressing the cricoid cartilage posteriorly against the cervical vertebra, reducing passive regurgitation risk during induction.

Question 19: When a conflict arises during patient education, what is the appropriate nursing action?

Ignore the conflict and continue working
Use the chain of command to escalate concerns through proper channels (Correct answer)
Document concerns on social media
Confront the individual publicly

Correct answer: Use the chain of command to escalate concerns through proper channels

The chain of command provides an established pathway for resolving conflicts and escalating concerns appropriately.

Question 20: The standard epidural test dose detects which two complications?

Intravascular injection and subarachnoid injection (Correct answer)
Epidural hematoma and intravascular injection
Total spinal and allergic reaction
Allergic reaction and subarachnoid injection

Correct answer: Intravascular injection and subarachnoid injection

The test dose (typically 3 mL of 1.5% lidocaine with 1:200,000 epinephrine) detects intravascular placement via epinephrine-induced tachycardia and subarachnoid placement via rapid dense motor block.

Question 21: How should a nurse respond to a change in patient condition during infection control?

Document the change and move to the next patient
Immediately assess, intervene if within scope, and notify the provider using SBAR (Correct answer)
Ask a family member for their opinion first
Wait for the physician to notice during rounds

Correct answer: Immediately assess, intervene if within scope, and notify the provider using SBAR

Prompt assessment, appropriate intervention, and structured communication using SBAR ensures rapid response to changes in patient condition.

Question 22: How should a nurse prioritize tasks related to patient education?

By room number sequence
According to family member requests
Alphabetical order of patient names
Based on the acuity and urgency of patient needs (Correct answer)

Correct answer: Based on the acuity and urgency of patient needs

Task prioritization in nursing should always be based on patient acuity and the urgency of clinical needs.

Question 23: How should a nurse respond to a change in patient condition during clinical procedures?

Ask a family member for their opinion first
Wait for the physician to notice during rounds
Immediately assess, intervene if within scope, and notify the provider using SBAR (Correct answer)
Document the change and move to the next patient

Correct answer: Immediately assess, intervene if within scope, and notify the provider using SBAR

Prompt assessment, appropriate intervention, and structured communication using SBAR ensures rapid response to changes in patient condition.

Question 24: What is the role of the bougie (endotracheal tube introducer) during difficult laryngoscopy?

It dilates subglottic stenosis before tube passage
It guides the ETT into the trachea when only the epiglottis or posterior structures are visible (Correct answer)
It verifies tracheal placement via CO2 detection
It replaces the need for a stylet in all intubations

Correct answer: It guides the ETT into the trachea when only the epiglottis or posterior structures are visible

The bougie's angled tip can be blindly or partially directed through a limited glottic view, then the ETT is railroaded over it into the trachea.

Question 25: Which local anesthetic is MOST associated with refractory cardiac toxicity and is therefore used at lower concentrations for epidural anesthesia?

Lidocaine
Mepivacaine
Chloroprocaine
Bupivacaine (Correct answer)

Correct answer: Bupivacaine

Bupivacaine has high affinity for cardiac sodium channels and dissociates very slowly ('fast-in, slow-out'), making accidental intravascular injection prone to causing refractory cardiac arrest.

Question 26: A patient develops stridor immediately after extubation. What is the most likely cause in an adult?

Tracheomalacia
Vocal cord paralysis
Laryngospasm (Correct answer)
Subglottic stenosis

Correct answer: Laryngospasm

Immediate post-extubation stridor in adults is most commonly caused by laryngospasm, a reflex glottic closure triggered by secretions or airway stimulation.

Question 27: What does the 3-3-2 rule assess in predicting difficult intubation?

Mallampati class, neck circumference, and mouth opening
Cervical spine flexion, mouth opening, and BMI
Mouth opening, thyromental distance, and hyomental distance (Correct answer)
Neck mobility, upper lip bite test, and thyromental distance

Correct answer: Mouth opening, thyromental distance, and hyomental distance

The 3-3-2 rule evaluates: ≥3 finger-breadths mouth opening, ≥3 finger-breadths thyromental distance, and ≥2 finger-breadths hyomental space to predict intubation difficulty.

Question 28: A patient on a MAO inhibitor requires opioid analgesia. Which opioid should be strictly avoided due to risk of serotonin syndrome?

Morphine
Meperidine (Correct answer)
Hydromorphone
Fentanyl

Correct answer: Meperidine

Meperidine inhibits serotonin reuptake and combined with MAO inhibitors can precipitate a fatal serotonin syndrome; it is absolutely contraindicated.

Question 29: When treating local anesthetic systemic toxicity (LAST), what is the recommended rescue therapy if standard resuscitation fails?

Sodium bicarbonate infusion
Magnesium sulfate bolus
Calcium chloride administration
Intravenous lipid emulsion (ILE) (Correct answer)

Correct answer: Intravenous lipid emulsion (ILE)

Intravenous lipid emulsion (20% Intralipid) acts as a 'lipid sink,' sequestering lipophilic local anesthetic away from cardiac and CNS tissues.

Question 30: Which inhalational anesthetic agent has the lowest blood-gas partition coefficient, resulting in the fastest induction and emergence?

Halothane
Sevoflurane
Desflurane (Correct answer)
Isoflurane

Correct answer: Desflurane

Desflurane has the lowest blood-gas partition coefficient (0.45), allowing the fastest induction and emergence among commonly used inhalational agents.

Question 31: What infection control measure is most critical during medication administration procedures?

Wearing gloves only when visible contamination is present
Performing hand hygiene before and after every patient contact (Correct answer)
Using hand sanitizer once per shift
Wearing a mask at all times regardless of procedure

Correct answer: Performing hand hygiene before and after every patient contact

Hand hygiene before and after every patient contact is the single most effective measure for preventing healthcare-associated infections.

NBCRNA National Certification Examination (NCE)

The NBCRNA National Certification Examination (NCE) is a variable-length computerized adaptive test that assesses the knowledge, skills, and abilities required for entry-level nurse anesthesia practice. It is required for initial CRNA certification and covers basic sciences, anesthesia equipment, and clinical anesthesia principles.

Questions

35 min

Time Limit

70%

To Pass

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