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
For shock patient, best guideline to check for adequacy of fluid replacement therapy: September 2010 
Select and explain. 
A. Hemoglobin, B. Urine output, C. Blood pressure and pulse, D. Central Venous Pressure
B: Urine output
Answer: B: Urine output 
Explanation: Ans. B: Urine output Urine output is a good indication of severity of shock. Urine output is affectd quite early even in moderate shock. It is also a good index of adequacy of replacement therapy.