The Nurse Evaluates a Prothrombin Time (PT/INR) for a Patient

The nurse evaluates a prothrombin time (PT/INR) for a patient who is taking heparin. The nurse's initial action should be to:

A) document the findings in the chart.
B) notify the lab that they have made an error.
C) check the physician's order.
D) notify the physician of the lab finding.