A child with human immunodeficiency virus is started on sulfamethoxazole and trimethoprim (Bactrim) for Pneumocystis carinii pneumonia (PCP) prophylaxis
The recommended dose is based on the trimethoprim (TMP) component and is 15–20 mg TMP/kg/day in divided doses every 6–8 hours. The child weighs 6.8 kg. The highest dose of TMP the child can receive a day is ____.
What will be an ideal response?
Correct Answer: 136
Rationale: 6.8 kg (the child's weight) is multiplied by 20 mg. This yields the answer, which is 136 mg a day.
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