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What is the dosage of Acetaminophen for a person aged 12 years to less than 18?

  1. PO 960-1000 one time

  2. PO 500-650 one time

  3. PO 400mg once only

  4. PO 800mg once only

The correct answer is: PO 500-650 one time

The appropriate dosage of Acetaminophen for a person aged 12 years to less than 18 is generally in the range of 500-650 mg taken by mouth (PO) once. This dosage is consistent with standard guidelines for pediatric patients, ensuring effective relief from pain or fever while minimizing the risk of toxicity. The rationale for this dosage range takes into account both safety and efficacy, as Acetaminophen is widely used for its analgesic and antipyretic properties. While there are other dosages listed, options that significantly exceed this range could lead to an increased risk of adverse effects. It is also important to ensure that the dosing aligns with current recommendations on maximum daily intake and avoids exceeding recommended limits for this age group. Thus, the choice of 500-650 mg once is suitable for addressing the needs of young adolescents safely and effectively.