CNOR Anesthesia and Sedation Principles 4

Question 1

A patient undergoing general anesthesia develops masseter muscle rigidity immediately after succinylcholine administration. The perioperative team should:

Accepted Answer

Suspect malignant hyperthermia and prepare dantrolene

Answer

Masseter spasm following succinylcholine is a potential early sign of malignant hyperthermia and warrants immediate preparation for MH treatment protocol.

Question 2

Which ASA physical status classification applies to a patient with well-controlled Type 2 diabetes and hypertension on medications?

Accepted Answer

ASA II

Answer

ASA II indicates a patient with mild systemic disease that is well-controlled and not functionally limiting.

Question 3

The perioperative nurse should recognize that nitrous oxide is CONTRAINDICATED in patients with:

Accepted Answer

Pneumothorax or bowel obstruction

Answer

Nitrous oxide diffuses into closed gas-filled spaces faster than nitrogen exits, expanding volume and increasing pressure in pneumothorax or bowel obstruction.

Question 4

During a procedure under moderate sedation, the patient's ETCO2 rises to 65 mmHg. The nurse should:

Accepted Answer

Stimulate the patient and reduce sedation depth

Answer

Rising ETCO2 indicates hypoventilation; stimulating the patient and reducing sedation depth addresses the cause of inadequate respiratory drive.

Question 5

Which of the following is the MOST appropriate position to prevent aspiration during induction of general anesthesia in a patient with a full stomach?

Accepted Answer

Reverse Trendelenburg (head up)

Answer

Reverse Trendelenburg (head-up) positioning reduces gastric pressure against the lower esophageal sphincter, decreasing aspiration risk during rapid sequence induction.

CNOR - Certification Exam Practice Test

CNOR - Certification Exam Practice Test

CNOR Anesthesia and Sedation Principles 4