Hematology
Prothrombin time (PT-INR)
Test Code: MTC00833
Prothrombin Time (PT) is a blood test that measures how long it takes blood to clot.
Sample Type
Blood
Preparation
Without Fasting
TAT
Results Within 4 Hours
8.
000
KWD
Home Visit Service
+ Home visit fee per region
Test Details
- • Prothrombin Time (PT) is a laboratory test used to evaluate the extrinsic and common coagulation pathways.
- • It is usually reported in seconds and standardized using the International Normalized Ratio (INR).
- • PT is widely used to monitor patients on anticoagulant therapy (such as warfarin), and to help diagnose bleeding disorders, liver disease, or vitamin K deficiency.
- • A prolonged PT indicates delayed clotting and a higher risk of bleeding.
8.
000
KWD
Home Visit Service
+ Home visit fee per region
All You Need to Know
Everything you need to know about this test, from preparation to results
Frequently Asked Questions
Find answers to common questions about this test
The main purpose is to assess blood clotting and monitor therapy.
INR is a standardized value calculated from PT for global comparison.
PT increases in liver disease, vitamin K deficiency, or with anticoagulant use.
Liver disease reduces clotting factor production, leading to prolonged PT.
Yes, PT is the main test for monitoring warfarin therapy.
PT evaluates the extrinsic pathway, while APTT evaluates the intrinsic pathway.