This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Depolarising Neuromuscular Blocking Agents, Subject name: Anaesthesia
Plasma potassium concentration is increased with: 
Select and explain. 
A. Succinyl choline, B. Atracurium, C. Pancuronium, D. Propofol
A: Succinyl choline
Answer: A: Succinyl choline 
Explanation: Ans: A (Succinyl choline) Ref: Ajax Yadav, Slum textbook of Pediatrics 1st edition Pg 86 Miller Textbook of Anaesthesia. 6th editionExplanation:Systemic Effects of Succinvl cholineCardiovascular system - Profound BradycardiaHyperkalemia - due to excessive muscle fasciculationsCNS - Increases intracranial tensionEye - Increases intraocular tensionGIT - Incr eases int agastric pressure, increases salivation, gastric secretions & peristalsisMuscle pains - due to excessive muscle contractionsMalignant hyperthermia - SCh is the most common drug causing thisAnaphylaxisMasseter spasm