CSFA CSFA Hemostasis and Wound Closure 2

Question 1

Gelatin sponge (Gelfoam) achieves hemostasis primarily by which mechanism?

Accepted Answer

Providing a scaffold for platelet aggregation and clot formation

Answer

Gelfoam acts as a physical matrix that absorbs blood and provides a surface on which platelets aggregate and fibrin polymerizes.

Question 2

Which layer of the abdominal wall is closed with a running or interrupted suture using a heavy delayed-absorbable or permanent suture for fascial strength?

Accepted Answer

Anterior rectus fascia / aponeurosis

Answer

The fascial layer (anterior rectus sheath/aponeurosis) bears the primary tension of abdominal closure and requires strong, long-lasting suture material.

Question 3

When using bipolar electrosurgery, what is the key advantage over monopolar electrosurgery?

Accepted Answer

Current travels only between the two bipolar forceps tips, limiting tissue spread

Answer

Bipolar current passes only between the two tines of the forceps, confining electrical energy to the grasped tissue and protecting surrounding structures.

Question 4

What is the correct needle holder technique when driving a curved needle through tissue?

Accepted Answer

Follow the arc of the needle's curvature with a pronating wrist motion

Answer

A curved needle must be driven in the direction of its arc; pronating the wrist follows the curve naturally, preventing tissue tearing.

Question 5

Which absorbable suture retains tensile strength the longest, making it suitable for slow-healing tissues like fascia?

Accepted Answer

Polydioxanone / PDS (4–6 weeks)

Answer

PDS (polydioxanone) retains approximately 70% tensile strength at 2 weeks and 50% at 4 weeks, making it ideal for fascial repair.

CSFA - Certified Surgical First Assistant Practice Test

CSFA - Certified Surgical First Assistant Practice Test

CSFA CSFA Hemostasis and Wound Closure 2