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30 October, 03:36

MD writes an order for 150 mg by mouth every 6 hours for 24 hours. pharmacy dispenses you with 75 mg per 3 ml. how many ml will you administer daily?

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  1. 30 October, 05:42
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    24ml

    Step-by-step explanation:

    First, calculate the amount needed in mg for each day.

    The rate given for each dose is 150mg every 6 hours. Since there are 24 hours in a day, divide the number of hours in a day by how often to give the medication to get the number of doses each day.

    24 hours : 6 hours = 4 doses daily

    The total mg each day is the number of doses daily multiplied by the amount in each dose.

    4 doses daily X 150 mg = 600mg daily

    Calculate how many mg of medication are in 1 ml given by the pharmacy.

    75mg : 3ml = 25mg/ml

    Divide the mg of medication daily by the concentration the pharmacy dispenses.

    600 mg daily : 25mg/ml = 24ml

    You will administer 24ml daily.

    Check by doing these steps backwards:

    24ml per day gives 600 mg of medication because there are 25mg per 1 ml. 24ml X 25mg = 600mg

    Each day you need to administer 150mg X (24h : 6h) of medication.

    150mg X 4 = 600mg, which is the correct amount.
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