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
Extradural hemorrhage test is- 
Select and explain. 
A. NCCT, B. USG, C. Dopplar US, D. X-ray pelvis
A: NCCT
Answer: A: NCCT 
Explanation: Ans. is 'a' i.e., NCCT * A CT Scan is the best investigation to diagnose suspect intracranial bleedsEpidural hematomaAcute subdural hematomaChronic subdural hematomaContusion/ Parenchymal HemorrhageSubarachnoid hemorrhageRadiologic featuresAcute bulging epidural clot bounded by cranial sutures; lenticular in shapeAcute blood rimming broad region of cerebral convexity, crescentic shape.Hyper -or isodense, unilateral or bilateral, crescentic shapeMultiple, confluent regions of edema intermixed with focal, acute bloodAcute blood lining cortex in subarachnoid space