Using the West nomogram scale, the nurse needs to calculate the safe dosage of a medication for a child. The child is 50 inches tall and weighs 76 pounds. The normal dosage of the medication for an adult is 300 mg.
Which of the following is the correct way to use the West nomogram scale?
A) Locate the child's height and weight on the scale; multiply those two numbers; divide the adult dosage by the resulting number.
B) Use the scale to locate the child's height and weight. Use a straightedge to align these numbers with the scale indicating the surface area. Divide that by the average adult body surface area, and multiply the resulting number by the adult dose.
C) Locate the child's height and weight on the nomogram. Use a straightedge to align these numbers with the scale indicating percentage of adult dosage; multiply the adult dosage by this number.
D) Use the shortcut scale because this child is average. This will show the nurse the percentage of the adult dosage appropriate for this child. Use this percentage to calculate the dosage.
Question 2
The nurse is caring for a child who weighs 31 kilograms. A medication is ordered for this child with a dosage range of 20 mg to 40 mg per kilogram of body weight per dose.
Which of the following dosages would be appropriate for the nurse to administer to this child in one dose?
A) 12.4 mg per dose
B) 62.0 mg per dose
C) 124.0 mg per dose
D) 1000 mg per dose
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