Question

3. Order: Morphine gr 1/6, po (by mouth), PRN (as needed). Note: When grains are used in a prescription, the part of a grain is usually listed after the letters "gr" (1 gram 15.43 gr [grains]) Drug available: Morphine 10 mg tablets How many tablets would you give each time?

Answer 1

Since 1g = 15.43gr (grains) or 15.43 grains = 1g so 1 grains = 1g/15.43 1/6 grains of morphine = 1/15.43 times 1/6 grams 1/6 grains of morphine = 0.0108 grams = 10.8mg Since the drug available: - Morphine 10mg tablets. 1 tablets contains = 10mg morphine 10mg morphine = 1 tablet 1mg morphine = 1/10 tablet \r\n 10.8 mg morphine = 10.8/10 tablets = 1.08 tablets ~ 1 tablet