Need help with nursing math

  1. Cefuroime 75 mg/kg/day IV in 3 divided doses. Supply: cefuroxime reconstituted 90mg/ml.
    Child's weight is 4.8 kg. What is the quantity to administer? Round to the nearest tenth.

    My answer Correct answer
    13.3ml. 1.3ml
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    About deemarys

    Joined: Aug '08; Posts: 162; Likes: 23

    5 Comments

  3. by   kcksk
    Quote from deemarys
    Cefuroime 75 mg/kg/day IV in 3 divided doses. Supply: cefuroxime reconstituted 90mg/ml.
    Child's weight is 4.8 kg. What is the quantity to administer? Round to the nearest tenth.

    My answer Correct answer
    13.3ml. 1.3ml

    First--multiply the dose x the weight in kg so you get 75x4.8 which gives you 360. In three divided doses is 120mg per dose. Then do the math 120/x = 90/1 you get 120=90x, 120/90=x, x=1.3ml

    Hope that helps.
  4. by   cslxagRN
    75 mg/Kg * 48 Kg/1 * 1 ml/90 mg= 40 ml/day ----> 40 ml/3 doses = 13.3 ml/dose
  5. by   cslxagRN
    Oops! Is my answer wrong?........Let's me do it again.
  6. by   kcksk
    Quote from icecreamcay
    75 mg/Kg * 48 Kg/1 * 1 ml/90 mg= 40 ml/day ----> 40 ml/3 doses = 13.3 ml/dose

    You used 48kg instead of 4.8 in your calculations. That's where I think you got the other answer.
  7. by   cslxagRN
    Quote from kcksk
    You used 48kg instead of 4.8 in your calculations. That's where I think you got the other answer.
    Oh! yeah! Thanks, I need to read question more cafeully....

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