Final answer:
The correct answer is D) "I will apply a new patch every 48 hours."
Step-by-step explanation:
The correct answer is D) "I will apply a new patch every 48 hours." This statement indicates understanding of teaching because nitroglycerin patches are typically applied once every 24 hours, not 48 hours. Option A is incorrect because the patch should be applied to an area with little to no hair to ensure proper adherence to the skin. Option B is incorrect because the patch should not be removed before taking a shower unless specifically instructed by the healthcare provider. Option C is incorrect because the patch should be applied to a clean, dry area of skin.