Prothrombin Time (PT/INR)
The Prothrombin Time (PT/INR) test measures how long it takes for blood to clot. This test is essential for evaluating the blood coagulation process and is commonly ordered by clinicians to monitor patients on anticoagulant therapy, assess liver function, or diagnose bleeding disorders. In clinical situations such as surgery, liver disease, or unexplained bleeding, the Prothrombin Time (PT/INR) test provides crucial information about the patient's coagulation status, helping guide treatment decisions.
Test Essentials
Specimen Required
2.7 mL blood (blue top 90% full)
Test Category
Hematology
Turnaround Time
Results for the Prothrombin Time (PT/INR) test are usually available within 24–48 hours after sample collection.
Clinical Information
Clinical Significance
Abnormal results in the Prothrombin Time (PT/INR) test may indicate potential bleeding disorders or liver dysfunction. A prolonged PT could suggest a deficiency in clotting factors or the presence of anticoagulant medication, while a shortened PT could indicate other medical conditions. The diagnostic value of the Prothrombin Time (PT/INR) test lies in its ability to provide insight into the coagulation pathway. Remember, only a healthcare provider can interpret your results accurately in the context of your overall health.
Reference Ranges
Reference ranges for the Prothrombin Time (PT/INR) test can vary based on the laboratory's methods and the patient's age and sex. Generally, a normal PT is often around 11 to 13.5 seconds, while the INR (International Normalized Ratio) is typically between 0.8 and 1.2 for individuals not on anticoagulant therapy. It's important to discuss your specific results with your healthcare provider, who can interpret them in the context of your health.
Sample Preparation
Before your Prothrombin Time (PT/INR) test, there is generally no need for special preparation. However, it is recommended to inform your healthcare provider about any medications you are taking, as some can affect the results. Fasting is typically not required, but your doctor may provide specific instructions based on your individual health needs.
Frequently Asked Questions
Ready to Schedule Your Test?
Contact our location to schedule an appointment or to learn more about Prothrombin Time (PT/INR) test and our services.
Available Monday - Friday, 9:00 AM - 5:00 PM
Get Prothrombin Time (PT/INR) Testing in Your City
We offer Prothrombin Time (PT/INR) testing services in multiple locations across New York. Schedule your test at a location convenient for you.
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY
NY