CNOR Nursing MCQ 3

Question 1

Which electrosurgical unit (ESU) mode uses alternating current to simultaneously cut and coagulate tissue?

Accepted Answer

Blend mode

Answer

Blend mode combines cutting and coagulation by interrupting the current cycle, producing both a cutting effect and hemostasis simultaneously.

Question 2

When preparing a patient for a total hip arthroplasty in the lateral position, which padding is ESSENTIAL to prevent a common positioning injury?

Accepted Answer

Axillary roll placed below the axilla

Answer

An axillary roll placed just below (not in) the axilla protects the brachial plexus and neurovascular structures of the dependent arm.

Question 3

The CNOR candidate should know that flash (IUSS) sterilization is indicated ONLY when?

Accepted Answer

A sterile item is dropped and no replacement is available

Answer

Immediate use steam sterilization (IUSS) is appropriate only when a needed item is contaminated and no replacement is available, not for implants or routine use.

Question 4

A surgeon requests the Trendelenburg position for a pelvic laparoscopy. Which physiological effect should the perioperative nurse anticipate?

Accepted Answer

Cephalad shift of the diaphragm

Answer

Trendelenburg causes abdominal viscera and the diaphragm to shift cephalad, reducing lung compliance and functional residual capacity.

Question 5

Which Spaulding classification applies to a rigid sigmoidoscope that contacts intact mucous membranes but does not penetrate sterile tissue?

Accepted Answer

Semi-critical — requires high-level disinfection

Answer

Semi-critical items contact intact mucous membranes and require high-level disinfection as a minimum standard of reprocessing.

CNOR - Certification Exam Practice Test

CNOR - Certification Exam Practice Test

CNOR Nursing MCQ 3