ARDMS Practice Test 2025 – Complete Exam Prep Guide

Question: 1 / 400

If a carotid duplex exam is performed on a patient with a 7MHz transducer and a 14 MHz transducer, which transducer will display a shift that is greater?

The 14 MHz transducer

The correct answer is A. The 14 MHz transducer will display a shift that is greater than the 7 MHz transducer. This is because Doppler shift is directly proportional to the frequency of the transducer used. Higher frequency transducers produce a greater Doppler shift, as they are more sensitive to detecting higher-frequency signals. Therefore, in this scenario, the 14 MHz transducer will display a greater shift compared to the 7 MHz transducer.

Option B is incorrect because the Doppler shift is not the same with both transducers due to their different frequencies. Option C is incorrect as the 7 MHz transducer will display a smaller shift compared to the 14 MHz transducer. Option D is incorrect as the Doppler shift can be identified based on the information provided about the transducer frequencies.

Get further explanation with Examzify DeepDiveBeta

The Doppler shift is the same with both transducers.

The 7 MHz transducer

The Doppler shift cannot be identified with this information.

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