Difficulty: Medium
Average Score: 82%
Simulated
When using a Doppler instrument to assess peripheral pulses, the correct placement of the transducer is important because it is difficult to differentiate between:
Correct answer
B
Rationale
Doppler ultrasound can detect both arterial (pulsatile) and venous (continuous) blood flow, but incorrect transducer placement may confuse these signals. Differentiating arterial from venous flow is critical in PVD assessment to confirm arterial patency. Capillary or arteriole flow is less relevant in this context.