(B) Intracranial bleed # RBCs are normally not present in the CSF and their presence indicates traumatic tap or subarachnoid hemorrhage.# CSF characteristics:> Idiopathic seizures --Clear CSF with normal protein, normal glucose, no WBC's, no RBC's, normal opening pressure and normal % Gamma globulin.> Bacterial meningitis --Milky CSF with increased protein, decreased glucose, high WBC's (PMN predominate), few RBC's, mildly increased opening pressure and normal % Gamma globulin.> Guillain Barre Syndrome --Yellow CSF with very high protein (up to a gram), normal glucose, no WBC's, no RBC's, normal opening pressure and normal % Gamma globulin> Subarachnoid haemorrhage -- Yellow CSF with increased protein, normal glucose, few WBC's, inumerable RBC's, mildly increased opening pressure & normal % Gamma globulin.> Benign intracranial hypertension --Clear CSF with normal protein, normal glucose, no WBC's, no RBC's, increased opening pressure and normal Gamma globulin.