Computed Tomography Technologist Practice Exam 2025 - Free CT Technologist Practice Questions and Study Guide

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What is the equivalent of 1 CGy in RAD?

0.1 RAD

1 RAD

The correct answer is based on the relationship between CGy (centigray) and RAD (radiation absorbed dose). One CGy is equivalent to one RAD because both units measure absorbed radiation dose.

To clarify, the centigray (CGy) is a metric unit that represents one hundredth of a gray (Gy), where one gray is equal to one joule per kilogram of matter. The RAD is an older unit of radiation dose that corresponds to 0.01 gray. Thus, when you convert CGy to RAD:

1 CGy = 1 RAD.

This equivalency is significant in contexts where consistency in the measure of radiation dose is essential, such as in medical imaging and radiation therapy. Hence, the standard conversion between these units validates that one CGy indeed equals one RAD.

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10 RAD

100 RAD

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