25 yr old female develops masseter muscle spasm after IV succinyl choline. ETCO2 progressively increases, hea rate increases, temperature raises; management includes all except :-: (A) Sta halothane to decrease the hea rate, (B) Hyperventilate with 100 % oxygen, (C) Active cooling measures, (D) Treat acidosis
Answer is A. It is most probably malignant hypehermia. Halothane is contraindicated in malignant hypehermia.