Vascular Technology & Hemodynamics Flashcards

What is the purpose of using duplex ultrasound in vascular studies?

Answer: Evaluate blood flow and vessel structure

Duplex ultrasound combines traditional ultrasound and Doppler to visualize vessels and evaluate blood flow.

Which condition is indicated by a monophasic waveform in an arterial ultrasound?

Answer: Arterial occlusion

A monophasic waveform usually suggests a significant downstream obstruction in an artery.

Which parameter is used to quantify arterial stenosis in vascular imaging?

Answer: Peak systolic velocity

Peak systolic velocity (PSV) is often measured to determine the severity of arterial narrowing.

Which vein is commonly assessed for deep vein thrombosis (DVT)?

Answer: Femoral vein

The femoral vein is one of the most commonly evaluated veins in DVT assessments.

What does a high-resistance waveform typically indicate?

Answer: Supply to muscular arteries

High-resistance waveforms are characteristic of arteries supplying muscles or organs with intermittent demand.

Why is patient hydration important before vascular ultrasound exams?

Answer: It enhances venous return and image quality

Hydration improves venous return and may enhance imaging, especially in abdominal vascular studies.