Prothrombin Index (PI), %

We remind you that independent interpretation of the results is unacceptable, the information provided below is for reference purposes only.

Prothrombin Index (PI) - a laboratory parameter that evaluates the blood coagulation process through the extrinsic and common pathways of the coagulation system.

It is used to assess the haemostasis system, identify possible coagulation abnormalities, as well as to evaluate liver function and monitor treatment with medications that affect blood coagulation.

Indications

• Assessment of the blood coagulation system
• Suspected haemostasis disorders
• Tendency to bleed or frequent bruising
• Detection of a possible deficiency of coagulation factors
• Assessment of liver function in relevant medical conditions
• Monitoring of treatment with medications that affect blood coagulation
• Preoperative assessment

Procedure

For the test, venous blood is collected into a special tube containing sodium citrate.

In the laboratory, the plasma prothrombin time is determined, based on which the Prothrombin Index is calculated.

Test method

Coagulometric method, based on determining the time required for fibrin clot formation after activation of plasma with specific reagents.

Sources:

https://www.reference.com/world-view/high-prothrombin-levels-mean-b019a14f1cc7cedc
https://en.wikipedia.org/wiki/Prothrombin_time
https://medlineplus.gov/lab-tests/prothrombin-time-test-and-inr-ptinr/
https://www.webmd.com/a-to-z-guides/prothrombin-time-test
https://www.verywellhealth.com/pt-ptt-and-inr-results-3157005
https://www.ncbi.nlm.nih.gov/books/NBK544269/
https://www.healthline.com/health/prothrombin-time-pt
https://www.reference.com/world-view/causes-high-prothrombin-time-d47c72363a32fe81

IMPORTANT!

It is crucial to remember that the information in this section is not intended for self-diagnosis or self-treatment. If you experience pain or exacerbation of a condition, it is essential to consult a healthcare professional for proper diagnosis and treatment. Only a qualified specialist can make an accurate diagnosis and determine the appropriate treatment plan. To obtain the most accurate and consistent evaluation of test results, it is recommended to have them performed at the same laboratory. This is because different laboratories may use different methods and units of measurement for similar tests.