Final answer:
The dermatologist prescribed drug A 15 mg/m2/dose q8h for a 12-year-old teen given their weight and BSA.
Step-by-step explanation:
The subject of this question is Medicine. The question asks about the prescription of drug A for a 12-year-old teen with a specific weight and body surface area.
To determine the appropriate dosage, the doctor usually prescribes 10 mg/kg/day for patients with a certain weight. In this case, the weight of the patient is 116 lbs. To convert this weight to kg, we divide by 2.2 (1 lb = 0.45 kg) and multiply by the prescribed dosage per kg. With a BSA of 1.44 m2, we can calculate the specific dosage for drug A. The formula for dosing based on BSA is (dose per m2) × BSA.
Therefore, the patient's dosage for drug A would be (15 mg/m2/dose) × 1.44 m2 = 21.6 mg/dose. The frequency of administration (q8h) indicates that the dose should be taken every 8 hours.