Question

If a patient received 2000 mrad during a 10 min fluoroscopic examination, what was the dose rate?

A.) 0.2 rad/min
B.) 2.0 rad/min
C.) 5 rad/min
D.) 200 rad/min

Answer 1

The dose rate if a patient received 2000 mrad during a 10 min fluoroscopic examination is 0.2 rad/min. This is calculated by converting mrad to rad and then dividing by the exposure time.

Step-by-step explanation:

If a patient received 2000 mrad during a 10 min fluoroscopic examination, the dose rate can be calculated by dividing the total dose by the exposure time. To convert millirad to rad, remember that there are 1000 millirads in a rad. Therefore, 2000 mrad is equal to 2 rad. To find the dose rate per minute, divide the 2 rad by 10 minutes.

The calculation would be:

Dose rate = Total dose (in rad) / Time (in minutes)

= 2 rad / 10 minutes

= 0.2 rad/min.

The correct answer is thus A.) 0.2 rad/min.