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Troponin-I (cTnI) is a protein found specifically inside the cells of your heart muscle. Under normal conditions, it stays safely inside those cells and helps your heart contract and pump blood with every beat.
When the heart muscle is injured — most commonly during a Myocardial infarction — the damaged cells break open and release Troponin-I into the bloodstream. Because this protein is highly specific to heart tissue, finding it in the blood is a strong signal that the heart has suffered injury.
Doctors rely on Troponin-I testing because:
It is highly specific to the heart (it doesn’t usually rise from simple muscle injury elsewhere in the body).
It can detect even small amounts of heart damage.
Modern high-sensitivity tests can identify injury very early, sometimes within a few hours of symptoms.
Test Type: Blood
Reporting: Next Day
Free Home/Office Sample Collection
Fasting: Fasting is not mandatory
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 same day 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 Delhi NCR