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: Unknown
Which of the following inhalational agent is the most soluble in blood? 
Select and explain. 
A. Halothane, B. Isoflurane, C. Enflurane, D. Desflurane
A: Halothane
Answer: A: Halothane 
Explanation: Blood/gas partition coefficient:· The ratio of concentration in blood to that in gas. High value denotes an agent very soluble in blood. Inhalational agent coefficient Halothane Isoflurane Enflurane Desflurane Sevoflurane
Most soluble in blood is halothane.
Least soluble in blood is desflurane.