This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General surgery, Subject name: Surgery
Reactionary hemorrhage occurs within 
Select and explain. 
A. 1-2 days, B. 2-7 days, C. < 24 hours, D. After 7 days
C: < 24 hours
Answer: C: < 24 hours 
Explanation: Reactionary haemorrhage commonly occurs in the first 24 hours after surgery, It may be caused by slippage of a ligature, displacement of blood clot, cessation of vasospasm, after coughing or increased mobility Bailey and Love 26th edition pg 19