CRCST Surgical Instrumentation

Question 1

What is the primary function of a hemostat in surgery?

Accepted Answer

To clamp blood vessels and control bleeding

Answer

Hemostats are clamping instruments specifically designed to compress blood vessels and control hemorrhage during surgical procedures.

Question 2

Which scissors are heavier and primarily used for cutting tough tissue such as fascia?

Accepted Answer

Mayo scissors

Answer

Mayo scissors are heavier and more robust, designed for cutting tough tissue like fascia, while Metzenbaum scissors are lighter and used for delicate tissue dissection.

Question 3

What is the distinguishing feature of a self-retaining retractor compared to a hand-held retractor?

Accepted Answer

It maintains tissue retraction without requiring manual support

Answer

Self-retaining retractors have a locking or ratchet mechanism that holds them open without requiring an assistant to hold them, freeing the surgical team's hands.

Question 4

The term 'atraumatic' when describing surgical forceps means the instrument is designed to:

Accepted Answer

Grip tissue without causing damage or puncture wounds

Answer

Atraumatic forceps have smooth or specially contoured tips that grip tissue gently without causing tearing, crushing, or puncture wounds.

Question 5

What is the purpose of the ratchet mechanism on locking clamps such as hemostats?

Accepted Answer

To lock the clamp at varying degrees of closure without manual effort

Answer

The ratchet allows the clamp to be locked at different positions of closure, maintaining clamping pressure on a vessel or tissue without requiring the surgeon to hold it continuously.

(CRCST) Certified Registered Central Service Technician Exam Practice Test

(CRCST) Certified Registered Central Service Technician Exam Practice Test

CRCST Surgical Instrumentation