A male client reports to the on-call clinic nurse that he took tadalafil 10 mg by mouth two hours ago and his skin now feels flushed. He reports a history of stable angina, but denies experiencing any current or recent chest pain. Which action should the nurse take?

Choice A: Advising the client to place one nitroglycerin tablet under his tongue as a precaution is a dangerous action for the nurse, as this can cause severe hypotension and cardiovascular collapse due to the interaction between tadalafil and nitroglycerin. This is a contraindicated choice.Choice B: Telling the client to have someone bring him to an emergency department immediately is an unnecessary action for the nurse, as there is no evidence of any serious adverse reaction or complication from tadalafil. This is an overreaction choice.Choice C: Instructing the client to increase his intake of oral fluids until the skin flushing is relieved is not an appropriate action for the nurse, as this does not address the cause of the flushing, which is vasodilation due to tadalafil. This is a distractor choice.Choice D: Reassuring the client that skin flushing is a common side effect of the medication is an appropriate action for the nurse, as this can calm the client and educate him about the expected effects of tadalafil. Therefore, this is the correct choice.