VT Venous Mapping & Preoperative Assessment

Question 1

What minimum diameter of the great saphenous vein (GSV) is typically required for use as a bypass conduit?

Accepted Answer

3.0 mm

Answer

A GSV diameter of at least 3.0 mm is generally required for use as a bypass conduit to ensure adequate flow and long-term patency.

Question 2

Which patient position best demonstrates GSV diameter during preoperative vein mapping?

Accepted Answer

Standing or reverse Trendelenburg

Answer

A standing or reverse Trendelenburg position uses gravity to distend the veins, giving the most accurate diameter measurements for surgical planning.

Question 3

In the CEAP classification system for chronic venous disease, what does the letter 'C' represent?

Accepted Answer

Clinical signs

Answer

In CEAP, 'C' stands for Clinical signs, ranging from C0 (no visible disease) to C6 (active venous ulcer).

Question 4

Which CEAP clinical class specifically describes an active venous ulcer?

Accepted Answer

C6

Answer

CEAP C6 is defined as an active venous ulcer that has not healed, while C5 indicates a healed venous ulcer.

Question 5

At which anatomical junction does the small saphenous vein (SSV) typically terminate?

Accepted Answer

Saphenopopliteal junction in the popliteal fossa

Answer

The SSV most commonly terminates at the saphenopopliteal junction (SPJ) in the popliteal fossa, although anatomic variants are common.

(VT) Vascular Technician Certification Practice Test