A Client with a History of Deep Vein Thrombosis Takes

A client with a history of deep vein thrombosis takes warfarin (Coumadin) daily. He has been experiencing headaches and has been taking over-the-counter pain relievers. The nurse discovers that the client is taking aspirin. Which assessment should the nurse be most attentive to at this time?

A) The client reports that his gums are bleeding more than usual when he brushes his teeth.
B) The client complains of constipation.
C) The client reports that he is unable to sleep at night despite feeling very fatigued.
D) The nurse notes that the client has a runny nose and some nasal congestion.