The practical nurse (PN) is discharging a client who had an anaphylactic reaction following administration of ampicillin. Which instruction is most important for the PN to provide this client?

Tell the client to take medications with food to decrease the possibility of future reactions

Instruct the client to wear a medic alert bracelet so penicillin will not be given again

Tell the client to keep epinephrine on hand for self-administration in case a reaction occurs again

Inform the client that it is essential to take all of the prescribed ampicillin