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Discussion

HELP Dosage Calculation

how many tablets should the patient receive if the provider ordered 250mg and each tablet contains 100 gm?

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    • Featured Replies

    250/100 = ?

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    .....

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    • Guides

    100 gms? don't think I've ever seen a pill with 100 grams. Okay, so it was a typo. But seriously, use common sense. If one pill has 100 mgs, how many will two have? how many will 3 have?

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    • Experts

    I always use dimensional analysis to answer med math questions.

    You need to know how many tablets to administer per dose. Always start with what you're looking for on top and cancel out from there:

    1 tablet x 250 mg

    100 mg dose

    OK, do the math and you have the answer. The milligrams cancel each other out and you are left with tablets per dose :) Make sense now?

    If the question was doctor ordered 250 mg per dose and you only have 1 gm tablets on hand (makes much more sense as I've never seen a 100 GRAM pill!!!), then it would be:

    1 tablet x 1 gm x 250 mg

    1 gm 1000 mg dose

    Again, gm & mg cancel out, so you're left with tablets per dose. I'll let you do the math to see how the answer changes based on what you have on-hand :up:

    ETA: the formatting changed when I posted. You'll need to align the fractions so they line up properly. Won't let me do it in this editor.

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    If you want $2.50 and you have one-dollar bills, how many dollar bills would that be? (It's ok to use scissors for purposes of this example)

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    • Author

    Yeah my teacher put that on purpose to see if we would realize, that's why I was so confused because it didn't make sense. Thank you though.

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    • Author

    Btw no need to be mean.

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    • Author

    Thank you :) Yeah my teacher put that on purpose to see if we would realize, that's why I was so confused because it didn't make sense. Thank you though.

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