This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Trauma, Subject name: Surgery
All of the following are suggestive of positive DPL except: 
Select and explain. 
A. >10 mL of gross blood is aspirated directly from peritoneal cavity, B. Effluent contains RBCs >1 lac/mm3, C. Effluent contains Amylase >174 IU/dL, D. WBC >100/mm3
D: WBC >100/mm3
Answer: D: WBC >100/mm3 
Explanation: DIAGNOSTIC PERITONEAL LAVAGE: - Performed for blunt trauma abdomen patients - DPL is performed through veical infra-umbilical midline incision unless the patients has pelvic fracture or is pregnant Positive DPL - > 10 mL of gross blood is aspirated directly from peritoneal cavity - Returned effluent contains - RBCs > 1 lac/ mm3 - WBCs > 500 / mm3 - Demonstrable bacteria or bile - Amylase > 174 IU/ dL - Sensitivity of DPL for detecting significant intra-abdominal injury is 82-96% & specificity 87-99%