If a patient received 0.045 Gy during a 6-minute fluoroscopic examination, what was the dose rate?

To determine the dose rate, you would divide the total dose received by the duration of the examination. In this case, the patient received a total dose of 0.045 Gy over a 6-minute fluoroscopic examination.

First, you need to express the total dose in milligrays (mGy) for simplicity, since the answer choices are in mGy/min. Recall that 1 Gy is equal to 1000 mGy, so 0.045 Gy is equal to 45 mGy.

Next, you calculate the dose rate:

Dose Rate = Total Dose / Time

= 45 mGy / 6 minutes

= 7.5 mGy/min

This calculation shows that the dose rate during the fluoroscopy was indeed 7.5 mGy/min, which corresponds to the selected answer. Understanding this calculation is essential in radiation protection, as it helps healthcare professionals monitor and minimize exposure to patients during diagnostic procedures.