Order the inhalation agents from highest to lowest potency: Isoflurane, Sevoflurane, Desflurane, Nitrous Oxide.

The order of inhalation agents from highest to lowest potency is based on their Minimum Alveolar Concentration (MAC) values, which is a measure of the anesthetic concentration needed to prevent movement in response to surgical stimulation in 50% of patients. The lower the MAC value, the higher the potency of the agent.

Isoflurane is the most potent agent in this group. Its MAC is lower than that of both Sevoflurane and Desflurane, indicating that a smaller amount is needed to achieve anesthesia. Following Isoflurane, Sevoflurane has a higher MAC value than Isoflurane but is more potent than Desflurane. Desflurane, although rapid in onset and offset due to its low solubility, has a higher MAC value than both Isoflurane and Sevoflurane, showing that it is less potent. Finally, Nitrous Oxide has the highest MAC value among these agents, which indicates it is the least potent of the inhalation anesthetics listed.

Thus, ordering them from highest to lowest potency reveals that Isoflurane is the most potent, followed by Sevoflurane, then Desflurane, and lastly Nit