A patient presents to the emergency with altered sensorium. All of these tests should be done except:
(A) Complete blood counts (B) Random blood sugar (C) Lumbar puncture (D) Non-contrast CT head
(C) Ans: C. Lumbar puncture(Ref Harrison 19/e p1773, 18/e p2251)Recommends imaging study prior to lumbar puncture.Excludes raised 1CP causes (large intracranial mass lesion) a Preventing herniation.