need help on this calculation problem please

  1. 0
    A client is receiving 2mg in 250mL D5W. The order is to infuse at 20mL/hr.
    Calculate:
    mg/hr
    mcg/hr
    mcg/min

    The answers I keep getting are:
    .16mg/hr
    160mcg/hr
    2.7mcg/min

    The book answers are:
    .36mg/hr
    360mcg/hr
    6mcg/min

    Who is wrong me or the book? lol
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  3. 4 Comments so far...

  4. 0
    I've worked it out twice and go the same things you did. I don't 100% trust my math, so I'm not willing yet to say that the book is wrong. Maybe someone else can check our answers.
  5. 0
    i got the same answers like yours too...
  6. 0
    I got the same answers too. If we're all getting it wrong it must be something ridiculously easy to overlook!
  7. 0
    A client is receiving 2mg in 250mL D5W. The order is to infuse at 20mL/hr.
    Calculate:
    mg/hr
    mcg/hr
    mcg/min

    ok, so what do we need to do first? First figure out how many mg are in 1 mL. take 2mg/250mls = .008 mg in 1 mL * 20mls/hr = 0.16 mg/hr. for mcg/hr multiply by 100 (0.16 * 100) = 160 mcg/hr. then take that 160mcg/hr and divide by 60 mins/hr = 2.7 mcg/hr (rounding up). I think with all this explained, the book is wrong. Not to mention trying to infuse 20ml/hr is really slow. I can't think of too many drugs that run this slowly. some cardiac ones, but it would make sense to run the dosages this slow.


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