Book blood tests, full body checkups, and pathology panels with free home sample collection, on-time phlebotomist visits, and digital reports in 24–48 hours.
Real operational metrics from CoreLab diagnostic services.
Search by test name or package — free home collection & on-time slots when you book online.
Purpose: PT measures how long it takes for blood to clot. It evaluates the function of clotting factors, proteins in the blood that help form a clot. These factors are produced by the liver, and PT can indicate if there’s an issue with liver function or blood clotting.
Process: A blood sample is taken, usually from a vein in your arm, and the time it takes for the blood to clot is measured. A longer-than-normal clotting time can indicate problems with blood clotting, such as liver disease or a deficiency in certain clotting factors.
Purpose: INR is a calculation used to standardize PT results. It adjusts for differences in test methods between laboratories, so it’s more reliable than just the PT alone.
Formula: INR = (PT of patient / PT of normal control) ^ ISI (International Sensitivity Index). The ISI is a value that indicates the sensitivity of the particular thromboplastin reagent used in the test.
Test Type: Blood Sample
Reporting: Same Day Max By 11PM
Free Home/Office Sample Collection
Fasting: Fasting Not Required
Best & Honest Price
One Prick Sample Collection Policy
Yes. Book home collection when ordering online or call our team. Trained phlebotomists visit your address at the scheduled slot.
Most routine tests are reported within 24–48 hours after sample validation. Specialized tests may take longer — see your booking confirmation.
CoreLab follows NABL-aligned quality-assured pathology processes with structured SOPs, trained collectors, and MD pathologist oversight.
View CoreLab diagnostic centers & home collection in Bengaluru