What is the typical small IV bolus dosing range for morphine?

What is the typical small IV bolus dosing range for morphine?

• A. 0.5-2.5 mg
• B. 5-10 mg
• C. 0.05-0.2 mg
• D. 10-20 mg

Answer: (A)

IV morphine is given as small, titratable boluses to achieve quick analgesia while keeping the risk of respiratory depression low. In opioid-naive adults, a small bolus in the half‑milligram to a couple of milligrams range is typical. This lets you gauge the analgesic response and safety after a short interval, then decide if another modest dose is needed. Doses well below this range, like 0.05–0.2 mg, are often too small to reliably relieve pain, while larger single boluses (several milligrams up to tens of milligrams) carry a greater risk of oversedation and respiratory compromise. So the common practice favors about 0.5–2.5 mg per small IV bolus with careful titration.

IV morphine is given as small, titratable boluses to achieve quick analgesia while keeping the risk of respiratory depression low. In opioid-naive adults, a small bolus in the half‑milligram to a couple of milligrams range is typical. This lets you gauge the analgesic response and safety after a short interval, then decide if another modest dose is needed. Doses well below this range, like 0.05–0.2 mg, are often too small to reliably relieve pain, while larger single boluses (several milligrams up to tens of milligrams) carry a greater risk of oversedation and respiratory compromise. So the common practice favors about 0.5–2.5 mg per small IV bolus with careful titration.