Normal PT values typically range from 11 to 13.5 seconds. However, these values may vary slightly depending on the laboratory. Abnormal values can indicate various conditions:
Prolonged PT: May indicate liver disease, vitamin K deficiency, or the presence of anticoagulants like warfarin. Shortened PT: Less common but may be seen in conditions like disseminated intravascular coagulation (DIC) or extensive cancer.
