CST Intraoperative Procedures 4

Question 1

Which hemostatic agent is derived from oxidized cellulose and works by providing a mechanical matrix for clot formation?

Accepted Answer

Surgicel (oxidized regenerated cellulose)

Answer

Surgicel is oxidized regenerated cellulose that provides a physical scaffold for platelet aggregation and clot formation.

Question 2

The surgeon asks for a #15 blade. Which handle is MOST appropriate?

Accepted Answer

#3 handle

Answer

The #15 blade is designed for the #3 handle and is used for small, precise incisions such as in plastic or ophthalmic surgery.

Question 3

During laparoscopic surgery, CO2 is used as the insufflation gas primarily because it:

Accepted Answer

Is rapidly absorbed and does not support combustion

Answer

CO2 is quickly absorbed by the body, is non-flammable making electrosurgery safe, and is exhaled through normal respiration.

Question 4

A patient in the lateral decubitus position requires an axillary roll. The purpose of this roll is to:

Accepted Answer

Relieve pressure on the brachial plexus of the lower arm

Answer

An axillary roll placed just below the dependent axilla relieves pressure on the brachial plexus and axillary vessels to prevent nerve injury.

Question 5

Which of the following describes the correct method for measuring suture before handing it to the surgeon for a ligature?

Accepted Answer

Measure from fingertip to elbow (approximately)

Answer

A ligature tie is typically measured by the ST from fingertip to elbow (~18 inches) to provide adequate length without excess.

(CST) Certified Surgical Technician Practice Test