Ms. Mangieri is a 48-year-old patient with terminal cancer–r…

Ms. Mangieri is a 48-year-old patient with terminal cancer–related pain and a history of opioid abuse. She has orders for sustained-release morphine sulfate Q8H, which was last given at 1300. It is now 1800 and Ms. Mangieri reports breakthrough pain at 7/10 on the pain scale. Which action should the nurse take first?