Liver failure can cause a decrease in the BUN (blood urea nitrogen)

A 44-year-old male is experiencing chest pain. He has a history of angina and is prescribed nitroglycerin, which he has not taken yet. He is also taking another medication. Which of the following contraindicates the administration of nitroglycerin?

A) Coumadin B) Levitra C) Methadone D) Albuterol

A description of other things that happen when the symptom or pain occurs is referred to as a "modifying factor."

Indicate whether this statement is true or false.