This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anaesthesia
Which of the following intravenous anesthetic agents is contraindicated in epileptic patients posted for general anaesthesia 
Select and explain. 
A. Ketamine, B. Thiopentone, C. Propofol, D. Midazolam
A: Ketamine
Answer: A: Ketamine 
Explanation: Ans. a. KetamineKetamine should be avoided in patients with history of seizures as it fuher increases ICP and also causes delirium and hallucinations. Contraindications of Ketamine:Head injury, intracranial space occupying lesion, eye injuryQ (increases ICT, IOT)Ischemic hea disease, vascular aneurysm and hypeensionQ (increases myocardial oxygen demand and hypeension)Psychiatric diseases and drug addictsdeg (more incidence of hallucination and emergence reaction)