INR Comparison Testing in Cardiac Surgery

Comparison of INR Determined by Point-of-Care to Standard Laboratory Testing Before and After Reversal of Heparin in Cardiac Surgery

The investigator is testing blood samples to compare the results of two different techniques. Since blood loss and the need for blood transfusions continue to be major problems after heart surgery and other types of surgery, the blood clotting levels are constantly checked during heart surgery as part of clinical care.The purpose of this study is to compare the INR levels in blood before and after the heart bypass during surgery.

Inclusion Criteria:

• Patients greater than or equal to 18 years of age.
• Patients undergoing elective surgery.
• Patients undergoing cardiac surgery.
• Patients to undergo general anesthesia with endotracheal intubation.
• Patients with well-controlled health disorders.

Exclusion Criteria:

• Patients currently on Coumadin or other anticoagulants; including, direct thrombin inhibitors and direct Xa inhibitors.
• Patients who are under 18 years of age or pregnant.
• Patients undergoing emergency surgery.
• Patients with known coagulation disorders.
• Patients who are unable to provide informed consent in the form of a signature