What is the responsibility of the nurse related to the patient's drug therapy? (Select all that apply.)

a) Teaching the patient how to cope with therapy is part of the nurse's responsibility to ensure the patient understands the treatment regimen, side effects, and how to manage any challenges, thus improving outcomes. b) Providing therapy refers to administering medications, but nurses generally do not "provide therapy" in the broader sense (such as deciding what therapy a patient needs beyond the prescribed drug regimen). c) Evaluating the effectiveness of therapy is the nurse's responsibility as part of the ongoing assessment. The nurse should monitor how well the drug is working and identify any adverse effects. d) Altering the drug regimen is outside the nurse’s scope of practice. Nurses can suggest changes or communicate concerns, but altering drug regimens requires a healthcare provider’s approval. e) Recommending over-the-counter medications for adverse effects is not within the nurse's scope unless advised by a healthcare provider. Nurses should guide patients based on provider orders and not independently suggest over-the-counter remedies.