Please help math test tomorrow. Having trouble with critical drips

  1. 0
    Please help. I have a test tomorrow and I can not for the life of me figure this out. Problem: Dopamine 250 mcg/min
    Concentration: 400 mg dopamine in 250 ml D5W.



    need to know ML/HR

    Drip factor is 60 gtts/ml

    Please work it out line by line. I am a horrilbe math person when it comes to these drips. thanks in advance.

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  2. 6 Comments...

  3. 0
    Quote from blynn9173
    Please help. I have a test tomorrow and I can not for the life of me figure this out. Problem: Dopamine 250 mcg/min
    Concentration: 400 mg dopamine in 250 ml D5W.



    need to know ML/HR

    Drip factor is 60 gtts/ml

    Please work it out line by line. I am a horrilbe math person when it comes to these drips. thanks in advance.
    If you only need to know ml/hr, disregard the drip factor.

    Since you need to know the hourly rate (ml/hr), the first thing to do is multiply the ordered dosage by 60: 250 mcg/min x 60 = 15000 mcg/hr

    Next, look at the medication available -- it's in milligrams, not micrograms, so you'll need to convert 15000 mcg to milligrams: 15000 mcg/1000 = 15 mg.

    So, the ordered dose is 15 mg/hr. You have 400 mg in 250 ml D5W on hand. You can next get ml/hr by using the D/H x Q formula: 15/400 x 250 = 9.375 ml/hr (follow whatever your teacher's instructions are on rounding)

    Hope that helps!
  4. 0
    Here's a website...it's sort of out-dated (2006), but I found it to be a helpful resource. Hope it helps!

    http://www.americannursetoday.com/as...d73cf4681a.pdf

    Good Luck!
  5. 0
    thanks so much
  6. 0
    Can anybody help me with this problem Aminophylline 25 mg/hr
    Concentration 500 mg of amniophylline in 250 ml

    how many ML/Hr?

    thanks
  7. 0
    250ml x 25mg / 500mg = you get what ever ml/hr
  8. 0
    moved to the general student discussion forum

    Plenty of math threads both in this and nursing student assist forums


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