What is the maximum allowable dose of morphine for an adult patient?

The maximum allowable dose of morphine for an adult patient can vary widely depending on several factors, including the patient's medical condition, previous exposure to opioids, and individual pain management needs. However, in a general context for initial or typical dosing in acute settings, 10 mg is often considered a standard maximum for non-tolerant adults receiving morphine for pain relief.

This dose is especially relevant in emergency situations or postoperative care where rapid and effective pain management is prioritized. Higher doses may be used in patients who are already on chronic opioid therapy or have a higher tolerance, but for those without prior exposure, 10 mg serves as a safe initial maximum that can be adjusted based on response and tolerability.

The other doses provided in the options are lower and may be appropriate for mild to moderate pain or for patients who have not been previously exposed to opioids, but they do not encompass the commonly accepted maximum for effective treatment in an acute pain scenario.