Certified Registered Nurse First Assistant (CRNFA)

Question 1

Which volatile anesthetic agent is most strongly associated with triggering malignant hyperthermia in susceptible patients?

Propofol Succinylcholine and all volatile halogenated agents (e.g., sevoflurane, desflurane) Nitrous oxide Ketamine

Correct Answer:

Succinylcholine and all volatile halogenated agents (e.g., sevoflurane, desflurane)

Question 2

The CRNFA observes sudden masseter muscle rigidity after succinylcholine administration during intubation. This finding should prompt concern for which emergent condition?

Laryngospasm Malignant hyperthermia Anaphylaxis Insufficient neuromuscular blockade

Correct Answer:

Malignant hyperthermia

Question 3

Dantrolene sodium is the definitive treatment for malignant hyperthermia. What is the initial recommended IV bolus dose?

0.5 mg/kg 2.5 mg/kg, repeated up to 10 mg/kg total if needed 5 mg/kg once 10 mg/kg as a single bolus

Correct Answer:

2.5 mg/kg, repeated up to 10 mg/kg total if needed

Question 4

During surgery, the anesthesiologist announces end-tidal CO2 of 68 mmHg, temperature of 39.8°C rising, and tachycardia of 148 bpm. The CRNFA's first action should be to:

Increase IV fluid rate Suspend the operation, assist the team to activate the MH protocol, and call for dantrolene Apply ice packs to the patient's neck and axillae only Administer a beta-blocker for the tachycardia

Correct Answer:

Suspend the operation, assist the team to activate the MH protocol, and call for dantrolene

Question 5

The purpose of pre-oxygenation (denitrogenation) before induction of general anesthesia is to:

Prevent malignant hyperthermia Extend the safe apnea window by maximizing lung oxygen reserves before intubation Prevent laryngospasm Reduce anesthetic agent requirements

Correct Answer:

Extend the safe apnea window by maximizing lung oxygen reserves before intubation

Question 1

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About this Exam

Prepare with the Certified Registered Nurse First Assistant (CRNFA) practice quiz. This question bank includes 30 questions covering crnfa, patient, surgery, nurse, and suture. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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Certified Registered Nurse First Assistant (CRNFA)

This practice set contains 30 questions from the matching question bank and focuses on crnfa, patient, surgery, nurse, and suture. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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About this Exam

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Certified Registered Nurse First Assistant (CRNFA)

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