Mean exposure of radiation from OPG is:: (A) 300 mR, (B) 90 mR, (C) 0.03 mR, (D) 30 mR
Answer is B. Mean exposure of skin from IOPA is 800 mR.
Gonadal exposure is 1/10,000 of skin exposure i.e., 0.03 mR.
Mean exposure of radiation from OPG is 90 mR.