Which One of the Following Statements About the Doppler Principle

question 8

Multiple Choice

Which one of the following statements about the Doppler principle is false?

• A) Doppler refers to a change in frequency in which the motion of laminar or turbulent flow is detected within a vascular structure.
• B) The beam should be perpendicular to the flow.
• C) The Doppler shift is directly proportional to the velocity of the red blood cell.
• D) If the red blood cell moves away from the transducer, then the fall in frequency is directly proportional to the velocity and direction of the red blood cell movement

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