A patient with a complicated medical history including hypertension, a-fib, and arthritis calls the health care provider's office to speak with a nurse about "all of these bruises I have all of a sudden." Which potential drug interaction should concern the nurse with these symptoms?

A. Aspirin and warfarin The combination of aspirin and warfarin poses a potential risk of increased bleeding and bruising. Both aspirin and warfarin are anticoagulants, and when used together, they can potentiate each other's effects, leading to a higher risk of bleeding events, including easy bruising. B. Sulfasalazine and acetaminophen Sulfasalazine is often used in the treatment of arthritis and inflammatory bowel disease, while acetaminophen is a commonly used pain reliever. There is no significant interaction between these two medications leading to increased bleeding or bruising. C. Tolmetin and propranolol Tolmetin is a nonsteroidal anti-inflammatory drug (NSAID) used for pain relief, and propranolol is a beta-blocker used for conditions such as hypertension. While both medications have their own potential side effects, there is no specific interaction between them that significantly increases the risk of bleeding or bruising. D. Meloxicam and amlodipine Meloxicam is an NSAID, and amlodipine is a calcium channel blocker used for hypertension. Similar to option C, there is no known significant interaction between these two medications that would lead to increased bleeding or bruising.