CNOR Anesthesia and Sedation Principles 3

Question 1

A patient develops stridor immediately upon extubation. The FIRST priority nursing action is to:

Accepted Answer

Apply 100% oxygen and assess airway patency

Answer

Stridor indicates partial airway obstruction; immediate application of oxygen and airway assessment are the first priorities.

Question 2

Ketamine is unique among anesthetic induction agents because it:

Accepted Answer

Produces a dissociative anesthetic state with maintained airway reflexes

Answer

Ketamine produces dissociative anesthesia while typically preserving airway reflexes and hemodynamic stability, making it useful in trauma settings.

Question 3

The bispectral index (BIS) monitor is used intraoperatively to:

Accepted Answer

Assess depth of anesthesia and reduce awareness risk

Answer

BIS monitoring analyzes EEG data to provide a numerical score reflecting depth of anesthesia, helping to prevent awareness under anesthesia.

Question 4

Which of the following is the MOST reliable sign of adequate reversal of neuromuscular blockade before extubation?

Accepted Answer

Train-of-four ratio ≥ 0.9

Answer

A train-of-four (TOF) ratio of 0.9 or greater indicates adequate recovery of neuromuscular function and is the gold standard before extubation.

Question 5

A patient receiving epidural anesthesia for a thoracic procedure suddenly complains of difficulty breathing and bilateral arm weakness. The nurse should suspect:

Accepted Answer

Total spinal anesthesia

Answer

Total spinal anesthesia occurs when local anesthetic spreads to high cervical levels, causing respiratory muscle paralysis and loss of upper extremity function.

CNOR - Certification Exam Practice Test

CNOR - Certification Exam Practice Test

CNOR Anesthesia and Sedation Principles 3