Suxamethonium causes all EXCEPT: September 2012: (A) Muscle pain, (B) Malignant hypehermia, (C) Hyperkalemia, (D) Hypokalemia
Answer is D. Ans. D i.e. Hypokalemia Succinylcholine/ SCh Depolarizing muscle relaxant, Shoest acting depolarizing MR; Shoest acting MR Dual/ biphasic block, Rapidly hydrolyzed by pseudocholinesterase Pressure increased by SCh: - Intra-cranial pressure, - Intra-ocular pressure, - Intra-gastric pressure SCh causes: - Muscle pain, - Hyperkalemia, - Vagal stimulation Predisposing factors SCh induced hyperkalemia: - Massive trauma (rhabdomyolysis), - Burns, - Stroke/ encephalitis etc.