What should be advised if a 15-year-old with a past allergy history presents with an expired epinephrine auto-injector?

The most appropriate action when encountering a 15-year-old with a past allergy history who has an expired epinephrine auto-injector is to advise contacting a doctor to get a new injector and discuss potential changes in dosage. This is crucial because epinephrine is a life-saving medication used to treat severe allergic reactions, and ensuring its effectiveness is paramount.

Using an expired epinephrine auto-injector can be risky as the medication may have degraded over time, potentially leading to inadequate treatment during anaphylaxis. It is essential to obtain a fresh supply to ensure the individual has access to an effective dosage in case of an emergency. Consulting a doctor also allows for an assessment of the patient's current health status and potential changes in prescribed dosage based on the patient's growth and changing medical needs.

While visiting an emergency room can be appropriate in severe cases, it does not address the immediate need for an effective epinephrine injector and may not be the first option unless the patient is currently experiencing a severe reaction. Disposing of the expired injector without a plan for replacement also leaves the patient vulnerable. Therefore, encouraging the patient to reach out to their healthcare provider for a new prescription is the best course of action.