A Client Is Admitted Through the Emergency Department with Severe

A client is admitted through the Emergency Department with severe gastrointestinal bleeding.The nurse assesses the client's medication history and finds that the client has been taking ibuprofen for arthritic pain.Warfarin (Coumadin) has been recently prescribed due to a diagnosis of atrial fibrillation.The nurse immediately reports her findings and concerns to the physician because:

A) Oral anticoagulants taken with ibuprofen can increase the risk of bleeding.
B) If taken with other NSAID medications, ibuprofen can cause a change in the client's oral mucosa and can cause white patchy lesions.
C) There has been little-to-no research performed that would indicate that the combination of oral coagulants with ibuprofen has caused any increased risk of bleeding.
D) The only real concern for gastrointestinal bleeding with ibuprofen is when it is combined with alcohol.