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: Medicine
[{'content': 'The true statement about contrast induced acute kidney injury is: \nSelect and explain. \nA. Rise in the serum creatinine after 12 hours, B. Peak in serum creatinine in 2 weeks, C. Dialysis requirement is usually uncommon, D. High fractional excretion of Na is a common finding', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Iodinated contrast agents are a leading cause of AKI. Increased risk is seen in Chronic kidney disease - paicularly diabetic nephropathy The most common clinical course of contrast nephropathy is A rise in SCr beginning 24-48 hours following exposure Peaking within 3-5 days Resolving within 1 week ALSO NOTE: More severe, dialysis-requiring AKI is uncommon Patients with multiple myeloma and renal disease are paicularly susceptible for severe renal failure. Low fractional excretion of sodium and without features of tubular necrosis are common findings. Ref: Harrison-E-18, P-2297.', 'role': 'assistant'}]