What coagulation parameters are assessed before a percutaneous procedure?
The patient history should be reviewed for bleeding risks, such as anticoagulant (warfarin [Coumadin], low-molecular-weight heparin) or platelet-inhibitor (aspirin, clopidogrel [Plavix]) agents, uremia, or hepatocellular disease.
Routinely assessed parameters include hematocrit, prothrombin time, international normalized ratio (INR), partial thromboplastin time (PTT), and platelet count.
