ARDMS (American Registry for Diagnostic Medical Sonography) Practice Test

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Which ultrasound technique typically results in the least exposure to the patient?

  1. Color flow Doppler

  2. Grayscale

  3. M-mode

  4. Spectral Doppler

The correct answer is: Grayscale

Grayscale ultrasound technique typically results in the least exposure to the patient compared to other ultrasound techniques such as Color flow Doppler, M-mode, and Spectral Doppler. Grayscale imaging involves using shades of gray to create an image based on the tissue's acoustic properties, without the need for contrast agents or Doppler techniques which use different types of ultrasound waves. This makes grayscale imaging a safer option as it requires less energy and avoids potential risks associated with Doppler techniques.

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