This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Radiology
Excretory urography is contraindicated in:March 2011 
Select and explain. 
A. Renal aery hypeension, B. Single kidney, C. Multiple myeloma, D. Trauma
C: Multiple myeloma
Answer: C: Multiple myeloma 
Explanation: Ans. C: Multiple myelomaContraindication to excretory/intravenous urography are 1) iodine sensitivity or previous reaction to contrast media, 2) pregnancy, 3) intractable cardiac or renal failure and 4) multiple myeloma