The client is 4 hours postamputation. The nurse notes a large amount of bright red blood on the dressing and notifies the surgeon. The client’s prothrombin time (PT) result is 22.5/INR 25. Which...

The client is 4 hours postamputation. The nurse notes a large amount of bright red blood on the dressing and notifies the surgeon. The client’s prothrombin time (PT) result is 22.5/INR 25. Which intervention should the nurse implement based on the PT/INR results?

1. Prepare to administer warfarin (Coumadin). 2. Prepare to administer vitamin K (AquaMEPHYTON). 3. Apply direct pressure to the residual limb. 4. Prepare to administer protamine sulfate.