This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anaesthesia, Subject name: Anaesthesia
Which one of the following inhalational anesthetics is most likely to cause fluoride ion nephrotoxicity 
Select and explain. 
A. Methoxyflurane, B. Enflurane, C. Halothane, D. Isoflurane
A: Methoxyflurane
Answer: A: Methoxyflurane 
Explanation: Methoxyflurane causes dose-related nephrotoxicity because of the inorganic fluoride that resulted from the metabolism of this anaesthetic.Basics of Anaesthesia 7e pg 86