Certified Surgical Technologist (CST) Practice Exam

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What are the three factors for reducing ionizing radiation exposure?

Type of procedure, equipment, radiation dose

Time, shielding, distance

The three factors for reducing ionizing radiation exposure are time, shielding, and distance.

Minimizing the time spent near radiation sources reduces overall exposure, as radiation intensity is cumulative over time. Utilizing shielding, such as lead aprons or barriers, effectively absorbs or deflects radiation, protecting both the patient and healthcare workers. Lastly, maintaining an appropriate distance from the source of radiation leverages the inverse square law, which states that as the distance from a radiation source increases, the intensity of exposure decreases significantly. By focusing on these three principles—time, shielding, and distance—healthcare professionals can minimize their radiation risk effectively while maintaining necessary diagnostic and therapeutic procedures.

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Exposure, frequency, concentration

Site, age, Gender

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