CNOR Intraoperative Care and Safety 4

Question 1

During a robotic-assisted surgery, the OR team loses all visual display. What is the safest immediate action?

Accepted Answer

Pause the procedure and troubleshoot the display system

Answer

The immediate safe response is to pause and troubleshoot; conversion to open surgery is reserved for situations where the problem cannot be quickly resolved.

Question 2

Which antiseptic agent is contraindicated for skin preparation around the eyes?

Accepted Answer

Chlorhexidine gluconate and isopropyl alcohol

Answer

Both chlorhexidine and alcohol are ototoxic and can cause serious eye injury; only dilute povidone-iodine is approved for periocular skin prep.

Question 3

When applying a tourniquet to the upper extremity, what is the maximum recommended inflation time before deflation and reperfusion?

Accepted Answer

90 minutes

Answer

Most guidelines recommend deflating pneumatic tourniquets after no more than 90 minutes on the upper extremity to prevent ischemic nerve and muscle injury.

Question 4

A nurse notices that a sterile package has a small tear in the outer wrapper but the inner wrapper appears intact. What is the correct action?

Accepted Answer

Consider the item unsterile and replace it

Answer

A compromised outer wrapper cannot guarantee the sterility of the inner contents; event-related sterility means any breach makes the item unsterile.

Question 5

Which safety measure is most important when using laser in the OR to protect the patient's airway?

Accepted Answer

Using a laser-resistant endotracheal tube with the lowest FiO2 possible

Answer

Laser-resistant ETTs with the lowest effective FiO2 reduce both ignition risk and fire propagation if the tube is struck by the laser beam.

CNOR - Certification Exam Practice Test

CNOR - Certification Exam Practice Test

CNOR Intraoperative Care and Safety 4