Stages of Anaesthesia were established by :: (A) Ether, (B) Nitrous Oxide, (C) Cyclopropane, (D) Chloroform
Answer is A. Ans. is 'a' Ether Guedel's staging of Anaesthesia was given for EtherStage of Anaesthesia are as follows*Stage I - Analgesia*Stage II - Delirium or excitement*, partially dilated pupilStage III - Stage of Surgical AnaesthesiaIt is divided in 4 stagesMoving eye to fixed eyeCorneal & laryngeal reflex lostLight reflex lostIntercostal paralysis, Abdominal respiration, Pupils widely dilated*Stage IV - Stage of Medullary Paralysis*