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
All the following are complications of massive blood transfusion except 
Select and explain. 
A. Hyperkalemia, B. Hypothermia, C. Hypomagnesemia, D. Hypercalcemia
D: Hypercalcemia
Answer: D: Hypercalcemia 
Explanation: Massive blood transfusion causes Hypocalcemia due to citrate.