A nurse is calculating the pediatric dose for a medication prescribed at 10 mg/kg for a client weighing 12 kg. What is the correct dose to administer?

Pediatric pharmacokinetics require weight-based calculations to ensure therapeutic efficacy and prevent toxicity. Variations in total body water and organ maturity necessitate precise milligram-per-kilogram dosing to maintain safe serum levels. Rationale: A. A dose of 150 mg exceeds the calculated requirement by 30 mg. This represents a potential overdose that could lead to hepatic or renal strain. It does not reflect the ordered 10 mg/kg concentration. Precise calculations are essential. B. Administering 100 mg would result in a subtherapeutic dose for this patient. Underdosing fails to reach the required minimum effective concentration to treat the underlying condition. It is mathematically incorrect based on the weight. Accuracy is mandatory. C. Step 1: Identify the formula Dose = weight × dose per kg Step 2: Insert values = 12 kg × 10 mg/kg Step 3: Calculate = 120 mg Final Answer: 120 mg D. A 200 mg dose is significantly higher than the intended safe limit. Such a large discrepancy could cause immediate adverse reactions or systemic failure in a small child. It violates the basic rules of pediatric medication math. Calculation must be verified.