When teaching about nitroglycerin patch use, which precaution should the nurse include?

When teaching about nitroglycerin patch use, which precaution should the nurse include?

• A. Avoid drugs to treat erectile dysfunction.
• B. Increase diet intake of high-potassium foods.
• C. Take an over-the-counter H2-receptor blocker.
• D. Avoid nonsteroidal antiinflammatory drugs (NSAIDs).

Answer: (A)

A primary precaution with nitroglycerin patches is avoiding erectile dysfunction medications. Nitrates like nitroglycerin lower blood pressure by dilating veins, which decreases preload and systemic vascular resistance. When combined with phosphodiesterase-5 inhibitors used for ED (such as sildenafil, tadalafil, or vardenafil), there is a potential for a dangerous, severe drop in blood pressure that can lead to fainting, stroke, or heart attack. Because of this, patients should not use ED drugs while a nitrate patch is active, and if ED remains an issue, they should consult a clinician for safe alternatives or timing. Other options listed don’t pose the same immediate, life‑threatening interaction with nitrate therapy. Potassium intake is not a precaution related to nitroglycerin patches, and an over-the-counter H2 blocker isn’t necessary to avoid specifically with nitrates. NSAIDs aren’t a contraindicated precaution with nitroglycerin patches in a general sense, though they have their own risks in cardiovascular disease. The key point is the interaction with erectile dysfunction medications.

A primary precaution with nitroglycerin patches is avoiding erectile dysfunction medications. Nitrates like nitroglycerin lower blood pressure by dilating veins, which decreases preload and systemic vascular resistance. When combined with phosphodiesterase-5 inhibitors used for ED (such as sildenafil, tadalafil, or vardenafil), there is a potential for a dangerous, severe drop in blood pressure that can lead to fainting, stroke, or heart attack. Because of this, patients should not use ED drugs while a nitrate patch is active, and if ED remains an issue, they should consult a clinician for safe alternatives or timing.

Other options listed don’t pose the same immediate, life‑threatening interaction with nitrate therapy. Potassium intake is not a precaution related to nitroglycerin patches, and an over-the-counter H2 blocker isn’t necessary to avoid specifically with nitrates. NSAIDs aren’t a contraindicated precaution with nitroglycerin patches in a general sense, though they have their own risks in cardiovascular disease. The key point is the interaction with erectile dysfunction medications.