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Troponint6hserplmcnc

Published: August 9, 2026Updated: August 10, 2026

A blood test that measures cardiac troponin T protein levels to detect heart muscle damage.

Quick summary

{"Measures troponin T, a protein released when heart muscle is damaged","Used to diagnose heart attacks and other cardiac conditions","Blood sample is typically taken 6 hours after symptoms begin","Results help doctors determine the extent of heart injury","Higher than normal levels indicate heart muscle damage"}

Medically reviewed by WellAlly Editorial TeamLast reviewed August 10, 2026Editorial policy

Key facts at a glance

LOINC
101915-7
Short code
cTnT
Synonyms
Troponin T 6h SerPl-mCnc
Category
cardiac
Sample
serum
Container
Serum separator tube (SST/gold top) or plain red top tube. Lithium heparin plasma also acceptable depending on assay platform.
Units
N/A
Ref low
0
Ref high
14
Critical range
— – 14 N/A
Fasting
false
Population
adult
Sex
all
Age range
≥ 18 years
Method
High-sensitivity electrochemiluminescence immunoassay (ECLIA)
CPT
84484
SNOMED
371893003
Specimen volume
1.0-2.0 mL serum or plasma minimum
Stability
Room temperature: 24 hours. Refrigerated (2-8°C): 7 days. Frozen (-20°C or below): 30 days. Avoid repeated freeze-thaw cycles.
Hemolysis max
50
Lipemia max
20
Icterus max
20
TAT
1–4 hours
Order
routine

What is this test?

The Cardiac Troponin T test measures the amount of troponin T in your blood. Troponin T is a protein found specifically in heart muscle cells. When the heart is damaged, such as during a heart attack, troponin T is released into the bloodstream. This test is performed on a blood sample (serum) collected typically 6 hours after the onset of cardiac symptoms to help diagnose and evaluate heart conditions.

Reference range

Reference range: <14 ng/L (0.014 μg/L) for high-sensitivity troponin T. Values below 14 ng/L considered within normal limits. Reference ranges may vary slightly by laboratory and assay manufacturer.N/A

Specimen: serum

No fasting required. Collect sample at presentation and again at 6 hours per protocol. Avoid vigorous exercise prior to collection. Inform laboratory of recent cardiac events, procedures, or medications that may affect results.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

Why do I need this test?
Your doctor may order this test if you have chest pain, shortness of breath, or other symptoms that could indicate a heart attack or other heart problem. It helps confirm whether your heart muscle has been damaged.
What do the results mean?
Normal troponin T levels are very low or undetectable. Elevated levels indicate heart muscle damage. The higher the level, the more extensive the damage. Your doctor will interpret your results along with other test results and your symptoms.
Is the test painful?
The test involves drawing blood from a vein in your arm, which may cause brief discomfort similar to a pinprick.
How long does it take to get results?
Results are typically available within a few hours, as this is often an urgent test performed in emergency settings.
  1. 1
    Mayo Clinic - Troponin TestSource
  2. 2
    American Heart Association - Cardiac BiomarkersSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 10, 2026. · Read our editorial policy