A fluoroscopy procedure lasted 10 minutes and delivered 5 mGy. If the fluoroscopy time had been only 5 minutes, what would the dose be?

Prepare for the RTBC X-ray Production and Safety Test. Study with flashcards and multiple choice questions, each with hints and explanations. Get ready for your exam and ensure your understanding of X-ray production and safety protocols!

Multiple Choice

A fluoroscopy procedure lasted 10 minutes and delivered 5 mGy. If the fluoroscopy time had been only 5 minutes, what would the dose be?

Explanation:
Fluoroscopy dose scales with the time the beam is on when the technique is unchanged. The dose rate here is 5 mGy over 10 minutes, which is 0.5 mGy per minute. If the time is reduced to 5 minutes, the dose becomes 0.5 mGy/min × 5 min = 2.5 mGy. So the dose would be 2.5 mGy.

Fluoroscopy dose scales with the time the beam is on when the technique is unchanged. The dose rate here is 5 mGy over 10 minutes, which is 0.5 mGy per minute. If the time is reduced to 5 minutes, the dose becomes 0.5 mGy/min × 5 min = 2.5 mGy. So the dose would be 2.5 mGy.

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