Minimizing Patient Exposure: The ALARA Principle in Medical Imaging Procedures.

What is the most important factor in minimizing patient exposure? Give an example of how it affects patient dose (p. 262).

The important factor to illiminating patient dose by primary beam confined to the area interest

The most important factor in minimizing patient exposure is reducing the radiation dose received during a medical imaging procedure. One way to achieve this is through the use of the ALARA principle, which stands for “as low as reasonably achievable.” This principle aims to minimize the radiation dose while still obtaining adequate image quality for diagnosis.

One example of how the ALARA principle affects patient dose can be seen in the use of computed tomography (CT) scans. CT scans use higher doses of radiation than other imaging modalities, and can result in greater patient exposure. By following the ALARA principle, radiologic technologists can adjust the scanner settings based on the patient’s size and age, and can limit the number of CT scans performed on a patient. This reduces the patient’s overall radiation dose without compromising the diagnostic value of the imaging study. Additionally, using alternative imaging modalities such as magnetic resonance imaging (MRI) or ultrasound can further reduce patient exposure.

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