Peripheral Venous Evaluation Flashcards
7 cards from real CCI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Peripheral Venous Evaluation flashcards as text
In the context of peripheral venous evaluation, which condition is associated with May-Thurner syndrome?
Answer: Left common iliac vein compressed by the right common iliac artery
May-Thurner syndrome occurs when the right common iliac artery crosses and compresses the left common iliac vein, predisposing to left-sided DVT.
Which B-mode gray-scale finding suggests CHRONIC rather than acute DVT?
Answer: Echogenic, retracted thrombus with partial recanalization
Chronic DVT typically appears echogenic (bright) and contracted, often with partial recanalization channels visible on color Doppler.
A perforator vein is considered hemodynamically significant when outward (deep-to-superficial) reflux duration exceeds:
Answer: 0.35 seconds
Perforator vein reflux is considered pathologic when outward flow lasts longer than 0.35 seconds after calf compression release.
Which structure is identified at the confluence of the anterior tibial, posterior tibial, and peroneal veins?
Answer: Tibial-peroneal trunk
The tibial-peroneal trunk forms below the knee where the posterior tibial and peroneal veins join before entering the popliteal vein.
When performing a venous duplex exam, the Valsalva maneuver is MOST useful for evaluating:
Answer: Competence of the saphenofemoral junction valve
The Valsalva maneuver increases intra-abdominal pressure and tests valve competence at the SFJ by provoking reflux if valves are incompetent.
A finding of 'spontaneous' venous flow on duplex ultrasound means:
Answer: Flow is present without any patient maneuver or compression
Spontaneous venous flow is detected at rest without requiring augmentation, indicating adequate venous patency and flow volume.
Which duplex finding at the popliteal vein is MOST consistent with extrinsic compression rather than intrinsic DVT?
Answer: Extrinsic mass visible; vein is compressible but flow is reduced
Extrinsic compression typically shows a compressible vein with an adjacent mass (e.g., Baker's cyst) causing flow reduction but no intraluminal thrombus.