An unconcious patient of head injury comes in casualty. On examination shows raised intracranial pressure. Which anesthetic agent is contraindicated:: (A) Thiopentone, (B) Propofol, (C) Ketamine, (D) Etomidate
Answer is C. C i.e. Ketamine Ketamine causes increase in all pressure i.e. intracranial, intraocular, intragastric and intravascular (Blood) pressure. So it is not used in raised ICT/IOT & Hypeension as it may increase the pressure to morbid levels.