CVT Vascular Technology & Hemodynamics 1 — Questions and Answers
Question 1: What is the purpose of using duplex ultrasound in vascular studies?
- Measure blood pressure
- Visualize muscle tissue
- Evaluate blood flow and vessel structure (Correct answer)
- Assess cardiac rhythm
Correct answer: Evaluate blood flow and vessel structure
Duplex ultrasound combines traditional ultrasound and Doppler to visualize vessels and evaluate blood flow.
Question 2: Which condition is indicated by a monophasic waveform in an arterial ultrasound?
- Normal arterial flow
- Venous reflux
- Arterial occlusion (Correct answer)
- Healthy collateral circulation
Correct answer: Arterial occlusion
A monophasic waveform usually suggests a significant downstream obstruction in an artery.
Question 3: Which parameter is used to quantify arterial stenosis in vascular imaging?
- Arterial diameter
- Venous pressure
- Peak systolic velocity (Correct answer)
- Oxygen saturation
Correct answer: Peak systolic velocity
Peak systolic velocity (PSV) is often measured to determine the severity of arterial narrowing.
Question 4: Which vein is commonly assessed for deep vein thrombosis (DVT)?
- Basilic vein
- Femoral vein (Correct answer)
- Cephalic vein
- Jugular vein
Correct answer: Femoral vein
The femoral vein is one of the most commonly evaluated veins in DVT assessments.
Question 5: What does a high-resistance waveform typically indicate?
- Continuous flow
- Turbulent flow
- Supply to low-resistance organs
- Supply to muscular arteries (Correct answer)
Correct answer: Supply to muscular arteries
High-resistance waveforms are characteristic of arteries supplying muscles or organs with intermittent demand.
Question 6: Why is patient hydration important before vascular ultrasound exams?
- It prevents motion artifacts
- It enhances venous return and image quality (Correct answer)
- It reduces ultrasound frequency
- It increases heart rate for better imaging
Correct answer: It enhances venous return and image quality
Hydration improves venous return and may enhance imaging, especially in abdominal vascular studies.
CVT Vascular Technology & Hemodynamics 1
What is the purpose of using duplex ultrasound in vascular studies?