Lab TestHematologichome collection

Prothrombin Time (PT).

aka PT · LOINC:5902-2

Measures blood clotting time

Sample typeblood

Report time4h

FastingNo

Starting at$5

§ 01

Preparation

Inform your doctor about all medications, especially blood thinners like warfarin. Avoid vitamin K supplements.

§ 02

PT11-13.5 seconds

INR (on warfarin)2.0-3.0

INR (not on warfarin)0.8-1.1

Normal ranges may vary between labs. Always consult your doctor for interpretation.