8. Just as you are recovering, your child falls ill. You know that there have be

Question

8. Just as you are recovering, your child falls ill. You know that there have been mistakes in your medication dosages, so you hurriedly scan the Internet to make sure that what the doctor is giving your child is safe. The doctor orders 2 things: b. 15 ml of Tylenol3 to be given every 4 – 6 hours.Your research indicates that there are 12 mg codeine per 5 ml of liquid and that the safe dosage is between 0.5 and 1 mg/kg/dose every 4 – 6 hours. Part 2: Is the dose your doctor ordered safe for your child?

Explanation / Answer

Each dose should be between 0.5 and 1 mg/kg
15 ml of Tylenol #3 contains 36 mg of codeine, since it is three times 5 ml.
That is 2.64 mg/kg, which is too much by a factor of 2.5 to 5.
The child should get about 20-40% of that amount prescribed or about 5 ml, not 15 ml. That would be 12 mg of codeine per dose, and that would be 0.88 mg/kg/dose.

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