<prompt> Intracranial pressure is not raised duringHyperventilationStatus epilepticusHead injurySubdural hematoma  <response>: Ans. is a i.e., Hyperventilation Hyperventilation is used as a treatment with raised intracranial pressure. Hyperventilation causes decreased PaCO2 which subsequently leads to arterial vasoconstriction thus lowering cerebral blood flow CBF, cerebral blood volume, and intracranial pressure.Causes of ICTi Intracranial mass tumorii Intracranial bleed e.g. subdural hematoma, intraventricular or intracerebraliii Subarachnoid hemorrhage aneurysm ruptureiv Encephalitismeningitsv Head injuryvi Status epilepticusvii Strokeviii Hydrocephalus 