CNOR CNOR - Certification Surgical Instrumentation and Equipment 2

Question 1

Which power tool requires nitrogen or compressed air as its energy source?

Accepted Answer

Pneumatic drill or saw

Answer

Harmonic scalpel

Answer

Bipolar electrosurgical forceps

Answer

Ultrasonic cleaner

Question 2

The harmonic scalpel differs from conventional electrosurgery because it:

Accepted Answer

Uses ultrasonic vibration to cut and coagulate simultaneously with minimal thermal spread

Answer

Uses electrical current at higher voltage

Answer

Requires a grounding pad on the patient

Answer

Is only used for laparoscopic cholecystectomy

Question 3

Which retractor type is self-retaining and does not require a team member to hold it?

Accepted Answer

Balfour retractor

Answer

Army-Navy retractor

Answer

Deaver retractor

Answer

Richardson retractor

Question 4

When is the final instrument, sponge, and sharp count performed?

Accepted Answer

At the beginning of wound closure and before the patient leaves the OR

Answer

Only after skin closure is complete

Answer

Before the first incision only

Answer

When the anesthesiologist requests it

Question 5

Which instrument is used to approximate wound edges during fascial closure?

Accepted Answer

Kocher or Allis clamp used to grasp fascia while placing sutures

Answer

Metzenbaum scissors

Answer

Towel clip

Answer

Needle holder only without tissue graspers

Question 6

A laser in the operating room requires all team members present to:

Accepted Answer

Wear appropriate optical density eyewear specific to the laser wavelength in use

Answer

Wear standard surgical masks only

Answer

Leave the room during activation

Answer

Use anti-static shoe covers