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Discussion

Dosage problem

I do not understand how to work this out , I've tried three different ways and can not come to the answer that was given , PLEASE HELP ME!

The healthcare provider prescribes an intermittent infusion of nafcillin (Unipen) 800 mg IV for a pediatric client. The drug is dispensed in a concentration of 250 mg/ml, and the recommended infusion concentration is 40 mg/ml. When adding the prescribed dose to the volume control device, how many ml of IV solution should the nurse add to dilute? (Enter numeric value only. If rounding is required, round to the nearest tenth.)

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    • Featured Replies

    • Author

    no the answer is 16.8, I got at first also

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    • Author

    800/x:250/1

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    LOL,

    I misread the problem.

    Good work.

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    Adding 20 would give you 23.2 ml for a concentration of 34.5 mg/ml.

    They love this type of problem where you have to account for the solution in the original dose.

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    • Experts

    ok...the problem...

    The healthcare provider prescribes an intermittent infusion of nafcillin (Unipen) 800 mg IV for a pediatric client. The drug is dispensed in a concentration of 250 mg/ml, and the recommended infusion concentration is 40 mg/ml. When adding the prescribed dose to the volume control device, how many ml of IV solution should the nurse add to dilute? (Enter numeric value only. If rounding is required, round to the nearest tenth.)
    So you

    have: 250mg/ml

    need: 800mg of the drug

    How much of the drug will you need to equal a total of 800mgs?

    Now if you have 800mg/___ml how many ml of diluent will you have to add to make a concentration of 40mg/ml.

    Don't forget to subtract the amount of fluid/drug you started with.

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