The nurse should only fill medication orders that correctly and clearly designate the dosage, drug, route, and frequency (without any “Do Not Use” abbreviations). Therefore, the only medication order the nurse would institute would be the following order: “Administer 3.5 mg morphine sulfate IV q4h.”

The order “Administer 3.5 mg MgSO₄,” contains a “Do Not Use” abbreviation and does not specify both the route and frequency; additionally, MgSO₄ is magnesium sulfate, which is not a pain medication.. The order “3.5 mg MSO₄ q4h” contains a “Do Not Use abbreviation” and does not specify the route. The order “3.5 mg morphine sulfate every 4 hours” does not specify the route. These orders need to be clarified with the provider prior to being executed.