CNOR Operating Room 4

Question 1

A scrub person notices that a suture package has a compromised seal. What is the correct action?

Accepted Answer

Pass it off to the circulator and open a new package

Answer

A compromised seal means sterility cannot be guaranteed; the item must be removed from the sterile field and replaced.

Question 2

Which hemostatic agent works by providing a physical matrix that promotes platelet aggregation and fibrin deposition?

Accepted Answer

Gelatin foam (Gelfoam)

Answer

Gelatin foam acts as a physical scaffold that absorbs blood and supports the natural clotting cascade through platelet aggregation.

Question 3

The perioperative nurse notes that a patient's core temperature is 35.2°C intraoperatively. Which intervention is most appropriate?

Accepted Answer

Increase room temperature and apply a forced-air warming blanket

Answer

Increasing ambient temperature and applying active warming devices are the first-line interventions for intraoperative hypothermia.

Question 4

Which gas is used to insufflate the abdominal cavity during laparoscopic surgery and why?

Accepted Answer

Carbon dioxide, because it is non-flammable, highly soluble, and rapidly absorbed

Answer

CO2 is used because it is non-combustible, rapidly absorbed by the body, and inexpensive, minimizing embolic risk compared to other gases.

Question 5

Which instrument is used to visualize the vocal cords for endotracheal intubation?

Accepted Answer

Laryngoscope

Answer

A laryngoscope is used to directly visualize the larynx and vocal cords to guide endotracheal tube placement.

CNOR - Certification Exam Practice Test