This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fundamentals In Radiology, Subject name: Radiology
Maximum permissible whole body radiation exposure per year is- 
Select and explain. 
A. 3 rem, B. 5 rem, C. 10 rem, D. 15 rem
B: 5 rem
Answer: B: 5 rem 
Explanation: Ans. is 'b' i.e., 5 rem Annual Maximum Permissible Dose Limitsmremrem 5,0005Whole Body Deep Dose Equivalent(Head, trunk, active blood-forming organs & reproductive organs)50,00050Whole Body Shallow Dose Equivalent (Skin of the whole body)15,00015Lens of Eye Dose Equivalent50,00050Extremities (Hands, fore arms, feet and ankles)