Question

an exposure is made using 100 milliamperes (ma) and 0.05 seconds (s). how will the patient dose change if the exposure is repeated using 200 ma and 0.025 s?
patient dose increases
patient dose decreases
patient dose remains the same

Explanation:

Step1: Calculate the initial mAs value

The product of milliamperes (mA) and seconds (s) is called mAs (milli - ampere seconds), which is related to the patient dose. Initial mAs = 100 mA×0.05 s = 5 mAs.

Step2: Calculate the new mAs value

New mAs = 200 mA×0.025 s = 5 mAs.

Answer:

Patient dose remains the same