The dosing of morphine given as 2.5 mg every 2 hours regularly describes which pattern of analgesic administration?

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Study for the Foundation Year Pharmacy – Clinical Practice Test. Prepare with detailed questions, step-by-step explanations, and test format insights. Enhance your readiness and confidence!

Multiple Choice

The dosing of morphine given as 2.5 mg every 2 hours regularly describes which pattern of analgesic administration?

Explanation:
Dosing on a fixed schedule means the drug is given at set times regardless of the patient’s current pain level. Giving morphine every 2 hours regularly keeps its levels steady and provides continuous analgesia, minimizing gaps where pain could return. This contrasts with PRN by symptoms, where a dose is given only when the patient reports pain, leading to variable levels. A loading dose followed by PRN would start with a higher initial dose to rapidly achieve relief, then rely on as-needed dosing, which isn’t described here. So the pattern described is fixed-interval dosing.

Dosing on a fixed schedule means the drug is given at set times regardless of the patient’s current pain level. Giving morphine every 2 hours regularly keeps its levels steady and provides continuous analgesia, minimizing gaps where pain could return. This contrasts with PRN by symptoms, where a dose is given only when the patient reports pain, leading to variable levels. A loading dose followed by PRN would start with a higher initial dose to rapidly achieve relief, then rely on as-needed dosing, which isn’t described here. So the pattern described is fixed-interval dosing.

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