LT
LabTestUAE
🩸 Blood Tests

PROTHROMBIN TIME (PT INR)

زمن البروثرومبين (PT INR)

Sample Type

🧪 Blood

Results In

⏱ 1-2 Days

Fasting

✅ Not Required

Parameters

📊 1

What is PROTHROMBIN TIME (PT INR)?

The Prothrombin Time (PT) with INR (International Normalized Ratio) test measures how long it takes for your blood to clot. It assesses the function of several clotting factors in your blood. This test is crucial for evaluating your blood's clotting ability.

Why is this test important?

PT INR is widely used to monitor patients on anticoagulant medications like warfarin, ensuring their dosage is effective and safe. It also helps diagnose bleeding disorders, liver disease, and vitamin K deficiency, which can all affect blood clotting.

How to Prepare

Inform your doctor about any medications you are taking, especially blood thinners. No other special preparation is typically required.

Medically reviewed by Dr. Reena Bhaisare, Specialist – Clinical Pathology (DHA No. 06420338-001). Samples are analysed at Lifenity Genomic Laboratory DMCC, Jumeirah Lake Towers (JLT), Dubai, where Dr. Reena Bhaisare authenticates each report. About our laboratory and medical review

Frequently Asked Questions

Do I need to fast before my blood test?▼
It depends on the test. Tests like lipid profile and fasting blood sugar require 10-12 hours of fasting. Tests like CBC, vitamin D, and thyroid do not require fasting. Each test page on our website clearly states the fasting requirements.
How soon will I receive my results?▼
Most routine tests have results within 24-48 hours. Some specialized tests take longer. Each test page shows its expected turnaround time, and we will let you know when your report is ready.
Are your labs licensed?▼
Yes. LabTestUAE is operated by MEDIC (Medical Diagnostic and Imaging Centre Polyclinic), which holds Dubai Health Authority (DHA) health facility licence 0045588, with home healthcare endorsed as an additional service. The Sharjah laboratory in Al Nahda is licensed by the UAE Ministry of Health and Prevention (MoHAP), licence 8788. Samples are analysed at our partner laboratory, Lifenity Genomic Laboratory DMCC in Jumeirah Lake Towers, Dubai (DMCC commercial licence 867782), and every report is authenticated by its specialist clinical pathologist, Dr. Reena Bhaisare (DHA No. 06420338-001). You can check the DHA licence on the DHA Sheryan facility search.

Related Tests

Complete Blood Count (CBC)

AED 80·6 Hours·22 params

ESR (Erythrocyte Sedimentation Rate)

AED 60·6 Hours

Blood Group & Rh Typing

AED 70·4 Hours·2 params

Reticulocyte Count

AED 90·12 Hours

Medical Disclaimer: The information on this page is for educational purposes only and should not be considered medical advice. Always consult your physician or qualified healthcare provider for diagnosis and treatment. Test results should be interpreted by a qualified medical professional.