| Test Name | : | Prothrombin Time PT |
|---|---|---|
| Sample Type | : | Blood | Gender | : | Male / Female | Age group | : | All Age GroupYears |
| Report Timeline | : | 4 to 6 hrs |
| This Test Includes | : | 4 Tests |
Parameters:
The Prothrombin Time (PT) test is a blood test that measures how long it ...
In Delhi, various pathology labs and diagnostic centers offer Prothrombin Time tests with home collection and same-day reporting options for patient convenience.
Doctors recommend the PT test in the following situations:
Bleeding Disorders: If a patient experiences frequent bruising, prolonged bleeding, or unexplained blood loss.
Liver Disease: To assess liver function, as the liver produces essential clotting factors.
Before Surgery: To ensure that the blood clotting process is normal and prevent excessive bleeding during procedures.
Monitoring Anticoagulant Therapy: Patients on blood thinners like Warfarin require PT tests to adjust medication dosage and prevent complications.
Vitamin K Deficiency: Since vitamin K is essential for clotting factor production, deficiencies can lead to abnormal PT results.
Disseminated Intravascular Coagulation (DIC): A condition where excessive clotting depletes clotting factors, leading to bleeding risks.
The PT test results are measured in seconds and compared to a reference range. A standardized ratio, called the International Normalized Ratio (INR), is also used for patients on blood thinners.
Normal PT Range: 10-14 seconds (may vary by lab).
Normal INR Range: 0.8-1.1 (for healthy individuals).
INR for Anticoagulant Therapy: 2.0-3.0 (for patients on Warfarin).
Prolonged PT (Higher than Normal):
Liver disease or cirrhosis
Vitamin K deficiency
Blood-thinning medications (Warfarin, Heparin)
Disseminated Intravascular Coagulation (DIC)
Clotting factor deficiencies (like Hemophilia)
Shortened PT (Lower than Normal):
High levels of clotting factors
Excess vitamin K intake
Some medical conditions that increase clotting risk
If results are abnormal, further tests like Activated Partial Thromboplastin Time (APTT) or Fibrinogen Level Test may be required to determine the exact cause. Consulting a doctor is essential for proper diagnosis and treatment.
