For Which Patient Should You Question the Prescriber About an Order

For which patient should you question the prescriber about an order for the PDE-5 drug vardenafil (Levitra) ?

A) Patient with a history of cardiac disease who is also prescribed nitroglycerin (NTG) for angina.
B) Patient with a history of type 1 diabetes and hypertension who is prescribed insulin and metoprolol.
C) Patient with a history of kidney stones and bladder infection who is receiving antibiotics.
D) Patient with a history of chronic obstructive pulmonary disease (COPD) who is prescribed bronchodilators.