This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anaesthesia
Suxamethonium causes all EXCEPT: September 2012 
Select and explain. 
A. Muscle pain, B. Malignant hypehermia, C. Hyperkalemia, D. Hypokalemia
D: Hypokalemia
Answer: D: Hypokalemia 
Explanation: 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.