Dosage Calc question...Caluculating mg/m2...

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  1. This is a discussion on Dosage Calc question...Caluculating mg/m2... in Nursing Student Assistance, part of Nursing Student ... OK the question is: A med is ordered 2mg/m2 for a child who weighs 50lbs and is 43 inches tall. ...

    by Jan 13
    OK the question is:
    A med is ordered 2mg/m2 for a child who weighs 50lbs and is 43 inches tall. Calculate the dosage.

    So this is what I've got:
    43x50/3131 and then sq rt is which is 0.83m2. Multiple 0.83m2 x 2mg=1.66mg.
    The instructors answer is 1.17mg. Myself and another student have both gotten 1.66 and not sure where the 1.17mg came from....Anyone want to help? Is the 1.66 right and instrucotrs 1.17 wrong or did we miss a step?
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    by Katie71275 Jan 13 4:24 pm
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  3. 3 Comments so far...

  4. Asst. Admin
    Jan 14 by
    Anyone else?? I have worked this several times....even if you use 22.7kgs and 109cm.....I get the same 1.66

    even if you cheat the BSA....http://www.halls.md/body-surface-area/bsa.htm....I get the same answer. Check with your instructor
    GrnTea likes this.
  5. Jan 16 by
    So turns out the instructor was wrong! Several students and I kept getting 1.66 and one emailed her, and yes 1.66 is the correct answer! Thanks Esme!
    Esme12 likes this.
  6. Asst. Admin
    Jan 16 by
    YOU're welcome