Final answer:
The nurse can determine if the teaching has been effective by observing a simulated demonstration by Charlie and his family, administering a knowledge quiz, and scheduling follow-ups to reinforce and assess long-term understanding.
Step-by-step explanation:
The best way for the nurse to determine whether teaching about the proper use of an epinephrine auto-injector has been effective is through direct observation and a return demonstration by the patient. The nurse can assess whether Charlie and his family have understood the teaching by having them simulate a situation where they would need to use the injector, including identifying the correct location for administration (the thigh) and demonstrating the proper technique without actually deploying the device.
Furthermore, the nurse may give a verbal quiz or checklist for Charlie and his family to complete, ensuring that they can recognize signs of anaphylaxis, know when to administer the epinephrine, and are aware of the need to seek medical attention immediately after use. To gauge long-term understanding, a follow-up appointment or phone call might be scheduled to review the steps and address any remaining questions or concerns.
It is also important for the nurse to ensure that Charlie and his family understand the need to carry two auto-injectors at all times and the importance of monitoring the expiration dates, as expired epinephrine may not be effective during an allergic reaction. This comprehensive approach helps guarantee that patients are prepared to respond appropriately during an emergency.