Subjects were from the British Women’s Heart and Health Study, a prospective cohort study of heart disease in British women. Baseline recruitment was 1999–2001 (age 60–79 years), with blood samples ...

Activated Partial Thromboplastin Time (aPTT or APTT): is a medical test that characterizes blood coagulation. Partial thromboplastin time (PTT) measures the overall speed at which blood clots by means ...

THE coumarin anticoagulants depress the synthesis of four clotting factors: prothrombin; proconvertin (factor VII); Stuart factor (factor X); and plasma thromboplastin component, or PTC (factor IX).

Do patients with renal disease have inherent coagulopathy? What prothrombin time (PT)/partial thromboplastin time (PTT) values can be expected with end-stage renal disease (ESRD)? —OMEL FIGUEROA, PA-C ...