CST Suture & Staple Materials 2

Question 1

Which suture material is derived from the submucosa of sheep intestine?

Accepted Answer

Plain gut

Answer

Plain gut suture is made from the submucosal layer of sheep intestine or the serosal layer of beef intestine.

Question 2

What is the primary advantage of monofilament suture over multifilament suture?

Accepted Answer

Reduced tissue drag and infection risk

Answer

Monofilament sutures have a smooth surface that reduces tissue drag and harbor fewer bacteria, lowering infection risk.

Question 3

Which absorbable suture retains tensile strength the longest?

Accepted Answer

PDS II (polydioxanone)

Answer

PDS II retains approximately 70% tensile strength at 2 weeks and 50% at 4 weeks, lasting longer than gut or Vicryl.

Question 4

A surgeon requests 2-0 Prolene for a vascular anastomosis. What color is this suture typically packaged in?

Accepted Answer

Blue

Answer

Prolene (polypropylene) suture is dyed blue to enhance visibility in tissue.

Question 5

Surgical staples used for skin closure are typically made of which material?

Accepted Answer

Stainless steel

Answer

Skin staples are most commonly made of stainless steel, which is strong, inert, and easily removed.

(CST) Certified Surgery Technician Practice Test