This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anesthesia, Subject name: Pharmacology
Muscle relaxant of choice in liver disease is 
Select and explain. 
A. Atracurium, B. Pipecuronium, C. Rocuronium, D. Vecuronium
A: Atracurium
Answer: A: Atracurium 
Explanation: Refer Katzung 11/e p456 Atracurium and cis-Atracurium are degraded spontaneously by Hoffman's elimination These don't require liver or kidney for elimination and thus are muscle relaxant of choice in a patient with renal and hepatic dysfunction