CNOR Anesthesia and Sedation Principles 2

Question 1

Which neuromuscular blocking agent is considered a depolarizing agent?

Accepted Answer

Succinylcholine

Answer

Succinylcholine is the only commonly used depolarizing neuromuscular blocking agent, causing persistent depolarization of the motor end plate.

Question 2

When a patient is placed in the Trendelenburg position during surgery under general anesthesia, which respiratory complication is most likely?

Accepted Answer

Reduced functional residual capacity

Answer

Trendelenburg position causes abdominal contents to press on the diaphragm, reducing functional residual capacity and worsening ventilation.

Question 3

The perioperative nurse notes the anesthesia provider is using a laryngeal mask airway (LMA). This device is BEST described as:

Accepted Answer

A supraglottic airway device that sits above the larynx

Answer

An LMA is a supraglottic airway that forms a seal over the laryngeal inlet without entering the trachea.

Question 4

A patient receiving monitored anesthesia care (MAC) becomes unresponsive to verbal stimulation and requires airway intervention. This represents a transition to:

Accepted Answer

General anesthesia

Answer

When a patient requires airway intervention under MAC, the level has progressed to general anesthesia regardless of the original intent.

Question 5

Which volatile anesthetic agent is associated with the highest risk of malignant hyperthermia triggering?

Accepted Answer

Desflurane

Answer

All halogenated volatile agents including desflurane can trigger malignant hyperthermia, but desflurane is particularly potent; propofol and nitrous oxide are considered safe.

CNOR - Certification Exam Practice Test

CNOR - Certification Exam Practice Test

CNOR Anesthesia and Sedation Principles 2