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: Surgery
An accurate method of measuring fluid replacement following acute blood loss is to check the: 
Select and explain. 
A. Hematocrit, B. Hemoglobin, C. Blood pressure, D. Central venous pressure
D: Central venous pressure
Answer: D: Central venous pressure 
Explanation: None