Pain is caused by injection of: (A) Ketamine, (B) Methohexitone, (C) Di-isopropyl alcohol, (D) Thiopentone
Answer is D. Ans. is 'd' i.e., Thiopentone Thiopentone is an ultrashort acting Barbiturate.It is usually given intravenously to achieve rapid induction of anaesthesia.Inadvertent intra-arterial injection or extravasation of Thiopentone leads to thrombosis and necrosis. This produces intense pain.