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Discussion

Dosage Cal

A critical care patient who weighs 80 kg has an order for 10 MCG/KG/MIN of dobutamine to be administered IV and regulated by an electronic pump. The supply of dobutamine is 500 MG in 250 mL OF D5W. I need Help, Please...

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    • Featured Replies

    I'm confused what you need help with. Are you trying to calculate the flow rate (mL/hr)?

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    • Admin

    What work have you done so far? Show us how you're setting up the problem so that we can provide direction.

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    • Author

    I'm sorry. Yes I am trying to calculate the IV PB Flow rate? the answer I calculated was 50

    Also ask me to , How many milliliters per day flow rate for IV BP? 200

    How many hours per day his IV BP Flow? 4 hours, but am not sure if my answers are right.

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    • Author

    1. 100ml/2 hours = 50ml/h

    2. ml per day (24 hours); 50ml for 1 hour, for 2 hours it will be 100ml,( to infuse in 2 hours every 8 hours ) = 400

    3. how many hours per day(24 hours) does does his IV BP flow? 8 hours

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    • Admin

    Your answers in your last two posts make zero sense to the question in your original post. Are these more questions not related to the first question?

    In the first question, you first need to determine how much of the med the patient needs. What dose does 10mcg/kg/min equal in mcg/min? From there, you should be able to calculate how many mLs per hour you will set the pump for.

    Edited to add:

    You may find this thread very helpful for dosage calculations: Student Resources: Nursing Math

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    • Author

    So sorry, you're right. I was looking at 2 different math problems and it put me off track.

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    • Author

    and thank you, I am going to that link you suggested right now

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    A critical care patient who weighs 80 kg has an order for 10 MCG/KG/MIN of dobutamine to be administered IV and regulated by an electronic pump. The supply of dobutamine is 500 MG in 250 mL OF D5W. I need Help, Please...

    10mcg x 80kg = 800 mcg/min

    60 min x 800 mcg x 1 mg x 250 ml (multiply these together)

    ---------------------------------- (take top number and divide it by numbers below)

    1 hour x 1 min x 1000 mcg x 500 mg

    Setting it up like this. It allows you to keep track of your conversions. So minutes cross out, mcg crosses out, and mg crosses out because theres 2 of them, so youre left with ml/hr

    answer I got was 24ml/hr

    Correct me if I'm wrong (math isnt my strong point :dead:)

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