Explanation
• Headaches are a common side effect of nitroglycerin. The nurse should ensure she has an order to administer acetaminophen as needed. Other common side effects include: lightheadedness, flushing, dizziness, orthostatic hypotension, and edema
• Labetalol is a beta blocker, which treats hypertension and it would not be used to treat any side effects of nitroglycerin
• Haloperidol is an antipsychotic and would not treat any side effects of nitroglycerin
• Diphenhydramine is an antihistamine and is used to treat allergies and allergic reactions. It would not prevent headaches or other side effects associated with nitroglycerin