A client arrives at the emergency department with chest pain after taking sildenafil.Based on the client's history, which medication should the nurse withhold?

Choice A rationale:Aspirin is not typically contraindicated in a client who has taken sildenafil unless there are specific contraindications or allergies. Aspirin is often used in the management of acute chest pain to help prevent blood clot formation.Choice B rationale:Heparin is not contraindicated solely because the client has taken sildenafil. Heparin is an anticoagulant commonly used in various clinical settings, including the management of certain cardiac conditions.Choice C rationale:Morphine is not necessarily contraindicated based solely on the client's use of sildenafil. Morphine can be used to relieve chest pain in some cases of acute coronary syndrome. However, its use should be carefully evaluated based on the client's overall clinical presentation.Choice D rationale:Nitroglycerin should be withheld in this scenario. Sildenafil is a medication used to treat erectile dysfunction and pulmonary arterial hypertension. It can potentiate the vasodilatory effects of nitroglycerin, leading to a severe drop in blood pressure. Concomitant use of nitroglycerin and sildenafil is contraindicated due to the risk of significant hypotension, which can be life-threatening.