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    RN HESI Dosage Calculations II Proctored Exam
    Calculation

    The healthcare provider prescribes magnesium hydroxide 4800 mg by mouth at bedtime for a client with constipation. The bottle is labeled "Magnesium Hydroxide Saline Laxative, USP 400 mg per 5 mL." How many ounces should the nurse instruct the client to take with each dose? (Enter numerical value only.)

    ounces

    Explanation & Rationale

    - To calculate the dose, divide 4800 mg by 400 mg to get 12 mL. - To convert mL to ounces, multiply 12 mL by 0.0338 to get 0.4056 ounces. - To round to the nearest hundredth, the final answer is 0.41 ounces. - The nurse should instruct the client to take 0.41 ounces of magnesium hydroxide at bedtime.

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