DANB Radiation Health and Safety (RHS) Practice Exam

Question: 1 / 400

What is the primary purpose of using Xrays in medical imaging?

To treat diseases

To visualize internal structures

The primary purpose of using X-rays in medical imaging is to visualize internal structures. X-rays work by passing radiation through the body, where different tissues absorb the rays to varying degrees. Dense materials like bones absorb more X-rays, making them appear white on the radiograph, while softer tissues allow more X-rays to pass through, appearing darker. This contrast helps healthcare providers identify abnormalities, diagnose conditions, and evaluate the health of organs and systems within the body.

Other options relate to different applications or methods. For example, treating diseases might involve higher doses of radiation, such as in radiation therapy, rather than imaging. Measuring radiation levels is essential for safety but does not pertain to the imaging purpose of X-rays. Similarly, conducting physical examinations typically involves hands-on assessments rather than imaging techniques like X-rays. The focus on visualizing internal structures underscores the essential role of X-rays in diagnosing and monitoring medical conditions.

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To measure radiation levels

To conduct physical examinations

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