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21 December, 15:22

The safe dosage of the IV antibiotic ceftriaxone for children weighing more than 2.0 kg is 60. mg per kilogram of body weight. Suppose a pediatric nurse has available 1.5 L of a ceftriaxone solution with a concentration of 0.030 g/mL. How can she calculate the volume of this solution that she should administer to a child weighing 41. kg? Set the math up. But don't do any of it. Just leave your answer as a math expression. Also, be sure your answer includes all the correct unit symbols. solution needed = 1 X 5?

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  1. 21 December, 17:17
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    (41 * 60) / 30 mL of antibiotic solution

    Explanation:

    The safe dosage of ceftriaxone antibiotic is 60 mg per kilogram of body weight.

    Now for a child weighing 41 kg we need:

    if we need 60 mg of antibiotic per 1 kg of body weight

    then we need X mg of antibiotic per 41 kg of body weight

    X = (41 * 60) / 1 = 41 * 60 mg of antibiotic

    The solution of antibiotic have a concentration of 0.030 g/mL and if we transform in milligrams we have a concentration of 30 mg/mL.

    Now we our case we need:

    if 30 mg of antibiotic are found in 1 mL of solution

    then 41 * 60 mg of antibiotic re found in Y mL of solution

    Y = (41 * 60 * 1) / 30 = (41 * 60) / 30 mL of antibiotic solution
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