<prompt> Which of the following inducing agent produces cardiac stability?EtomidateKetamineHalothaneThiopentone  <response>: Etomidate It is another induction anaesthetic 0.2- 0.5 mgkg which has a briefer duration of action 4-8 min.than thiopentone; produces little cardiovascular and respiratory depression, but motor restlessness and rigidity is more prominent as are pain on injection or nausea and vomiting on recovery. It is a poor analgesic and has not found much favour ,except for patients with compromised cardiovascular status. Reference: Essentials of Medical Pharmacology Eighth Edition KD TRIPATHI page no 410 