General anaesthetic agent causing sympathetic stimulation: September 2011
Ans. B: Ketamine Ketamine stimulates sympathetic system causing tachycardia and hypeension so it is intravenous anaesthetic of choice for shock Disadvantages of Midazolam: Incidence of apnea, respiratory depression and hypotension are higher and more profound than diazepam Thiopentone causes hypotension which is more because of venodilatation Ketamine: It is phencyclidine Causes dissociative anaesthesia Increases all pressures (BP, intraocular tension, intracranial tension) Causes profound analgesia Causes hallucinations, illusions and delusions Contraindicated in: Intracerebral mass or hemorrhage Causes bronchodilation (used in asthmatics) and increases cardiac output (used in hypovolumic shock)
Thiopental
Ketamine
Midazolam
Etomidate