Troponintdtroponintbs2hserpl
A blood test that measures cardiac troponin T, a protein released into the bloodstream when the heart muscle is damaged.
{"Cardiac troponin T is a protein released when heart muscle is damaged","This test helps diagnose heart attacks and other heart conditions","The test is performed on a blood sample (serum or plasma)","Results are typically available within a few hours","Even small amounts of troponin can indicate heart injury"}
Key facts at a glance
- LOINC
- 101913-2
- Short code
- Troponin T. D/Troponin T BS 2h % SerPl
- Synonyms
- Troponin T. D/Troponin T BS 2h % SerPl
- Category
- cardiac
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 0
- Ref high
- 0.04
- Critical range
- — – 0.1 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 84484
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
What is this test?
The Cardiac Troponin T test measures the level of cardiac troponin T (cTnT) in your blood. Troponin is a protein found specifically in heart muscle cells. When the heart is damaged, troponin is released into the bloodstream. This baseline test establishes your initial troponin level, which may be compared to subsequent tests taken a few hours later to see if levels are changing.
Why is this test performed?
This test is primarily used to diagnose a heart attack (myocardial infarction). It may also be used to: detect heart muscle damage from other conditions, evaluate chest pain or other symptoms of heart problems, determine the severity of heart disease, and monitor heart health after certain medical procedures or conditions.
What do the results mean?
Normal troponin T levels are typically very low or undetectable. Elevated levels indicate heart muscle damage. The degree of elevation can help determine the extent of damage. Your doctor will compare this baseline result with follow-up tests to understand how your heart is responding.
How is the test done?
A healthcare professional will draw a blood sample from a vein in your arm. The sample will be sent to a laboratory for analysis. You may need to have multiple blood draws over several hours to track changes in troponin levels.
Reference range
Normal: <0.04 ng/mLN/A
No special preparation required. Inform provider of any chest pain or symptoms.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Frequently asked questions
How long does it take to get results?
Do I need to fast before this test?
Can troponin be elevated for reasons other than a heart attack?
What happens after my troponin test?
Sources
- 1
- 2
- 3
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.
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 16, 2026. · Read our editorial policy