The nurse is calculating the medication dose for a 4-year-old child by plotting the child's height and weight on a nomogram, then drawing a line between the two points. The point at which the line intersects the surface area line is the child's BSA
The dose is calculated using the BSA. What does this calculation represent?
1. Body weight method
2. Age–weight method
3. Pharmacokinetic method
4. Body surface area method
Correct Answer: 4
Rationale 1: The formula for the body weight method is mg/kg/day.
Rationale 2: This method is based on the child's height and weight, not age.
Rationale 3: The methods of calculating pediatric doses do not include a pharmacokinetic method.
Rationale 4: The body surface area is the correct formula. It accounts for the pharmacokinetic differences in pediatric medication.
Global Rationale: The body surface area is the correct formula. It accounts for the pharmacokinetic differences in pediatric medication. The formula for the body weight method is mg/kg/day. The BSA method is based on the child's height and weight, not age. The methods of calculating pediatric doses do not include a pharmacokinetic method.
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