This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pancreas, Subject name: Surgery
Poor prognostic factor in a patient which acute pancreatitis: 
Select and explain. 
A. Leucocytosis >20,000/mL, B. | serum amylase, C. |serum lipase, D. Diastolic BP >90 mm Hg
A: Leucocytosis >20,000/mL
Answer: A: Leucocytosis >20,000/mL 
Explanation: Ans. (a). Leucocytosis >20,000/mRef: Sabiston 19/ep 1522RANSONS CRITERIA On admissionWithin 48 hrs * L- LDH >700u/l* A- AST >250 sigma frankel units %* G- Glucose >10mmol/l* A- Age>55 yrs* W-WBC Count >16000/mm3* B-Base deficit >4mmol/l* U- Blood Urea N2 >5mg%* C-Calcium <2.0mmol/l* H- Haematocrit fall >10%* O- Arterial O2 saturationPaO2 <60mmHg* W- Water sequestration >6l* Serum Amylase, Lipase is not included in Ranson's Score and not useful in severity assessment* WBC count >16000/mm3 has bad prognosis