A nurse is applying a nitroglycerin transdermal patch for a client who has angina. Which of the following actions should the nurse take?
A.
Apply the patch to a hairless area of the skin.
B.
Apply a 4×4 dressing over the patch.
C.
Apply the patch to the same site every 24 hr.
D.
Apply the patch to a bony prominence on the chest.
The correct answer and Explanation is :
The correct answer is A. Apply the patch to a hairless area of the skin.
Explanation:
When applying a nitroglycerin transdermal patch for a client with angina, it’s crucial to ensure that the patch is placed on a hairless area of skin. This is important for several reasons:
- Absorption Efficiency: The effectiveness of transdermal medications depends on proper absorption through the skin. Hair can impede this absorption, potentially leading to inconsistent drug levels in the bloodstream. Applying the patch to a hairless area helps ensure that the medication is absorbed evenly and effectively.
- Skin Integrity: Areas with hair can often be more prone to irritation or chafing when covered by a patch. By choosing a hairless area, the risk of skin irritation and potential adverse effects, such as dermatitis, is minimized. This is particularly important for a medication like nitroglycerin, which can cause local skin reactions.
- Avoiding Bony Prominences: Applying the patch to a bony prominence (Option D) is not recommended as it may lead to discomfort and irritation. Bony areas are more susceptible to pressure and friction, which can affect the integrity of the patch and the skin underneath.
- Patch Rotation: To prevent skin irritation and develop tolerance, it is important to rotate the application site daily. This means the same site should not be used every 24 hours (Option C), which could lead to localized skin issues.
- Dressing: Applying a 4×4 dressing over the patch (Option B) is unnecessary and can actually hinder the medication’s absorption. The patch is designed to adhere directly to the skin without additional covering.
In summary, for optimal efficacy and safety, a nitroglycerin transdermal patch should be applied to a hairless area of skin, avoiding bony prominences and ensuring that application sites are rotated to maintain skin integrity and medication effectiveness.