A Patient Has Been Receiving Intravenous Heparin

A patient has been receiving intravenous heparin.When laboratory tests are drawn,the nurse has difficulty stopping bleeding at the puncture site.The patient has bloody stools and is reporting abdominal pain.The nurse notes elevated partial thromboplastin time (PTT) and activated partial thromboplastin time (aPTT) .Which action will the nurse perform?

A) Ask for an order for oral warfarin (Coumadin) .
B) Obtain an order for protamine sulfate.
C) Request an order for vitamin K.
D) Suggest that the patient receive subcutaneous heparin.