ARDMS (American Registry for Diagnostic Medical Sonography) Practice Test

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What is NOT a component of attenuation?

Reflection
Scattering
Resolution
Absorption

The correct answer is: Resolution

Resolution is not a component of attenuation. Attenuation refers to the gradual loss in intensity of a beam as it passes through a medium, which can be caused by reflection, scattering, and absorption. Resolution, on the other hand, pertains to the ability of an imaging system to distinguish between two objects that are close together. It is not directly related to the phenomenon of attenuation.