This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Radiology
Patient presented to the emergency department with severe abdominal pain - an erect radiograph was done. Based on the findings - the management should be:(AIIMS 2018) 
Select and explain. 
A. Gastric lavage, B. ICD insertion, C. Laparotomy, D. USG FAST
C: Laparotomy
Answer: C: Laparotomy 
Explanation: Ans.C LaparotomyRadiograph shows free gas under diaphragm suggestive of Perforation - hence answer is Laparotomy. X-ray chest erect - is best radiographic projectionQ whereas CT scan is the most sensitiveQ/overall Best investigationQ to identify pneumoperitoneum.