All signs malignant hypehermia except

Malignant hypehermia is hypermetabolic state with following clinical features 1. Marked increased metabolism Increased co2 production Increased oxygen consumption Reduced mixed venous oxygen tension Metabolic acidosis Cyanosis Hypehermia 2. Increased sympathetic activity Tachycardia Hypeension Arrhythmias 3. Muscle damage Generalized rigidity Hyperkalemia Hypernatremia Hyperphosphatemia Myoglobinuria Note : Capnograph with a sudden and progressive increase in ETCO2 is typical of malignant hypehermia. One of the earliestandmost sensitive indicatorsof malignant hypehermia.