What does Troponin T high sensitivity mean?
An elevated level of troponin T on the high-sensitivity cardiac troponin test indicates heart muscle damage or a heart attack. The high-sensitivity cardiac troponin test can detect very small levels of troponin T in the bloodstream.
What is a good troponin T level?
What level of troponin indicates heart attack? The level of troponin that indicates a heart attack is the level above the reference range. For example if the normal reference range is listed as 0.00 – 0.40. Then 0.41 is technically positive although very weakly so, and 10 is very positive.
What is a high sensitivity HS cardiac troponin assay?
High-sensitivity (hs) cardiac troponin (cTn) assays expedite the evaluation of patients with possible acute coronary syndromes (ACS) in the emergency department. Rapid screening protocols with hscTn have been proposed for patients for whom ruling-in or ruling-out acute myocardial infarction (AMI) is the primary issue.
Which is more sensitive troponin I or T?
Results: We found that (1) troponin I is a better cardiac marker than CK-MB for myocardial infarction because it is equally sensitive yet more specific for myocardial injury; (2) troponin T is a relatively poorer cardiac marker than CK-MB because it is less sensitive and less specific for myocardial injury; and (3) …
When do you repeat high sensitivity troponin?
Thus, high-sensitivity cTn assays can rule out AMI within 3 hours of presentation. However, measurement of high-sensitivity cTn should be repeated 6 hours after presentation in patients in whom the 3-hour values are unchanged, but in whom the clinical suspicion of AMI remains high [7].
How long does high sensitivity troponin stay elevated?
Most patients who have had a heart attack have increased troponin levels within 6 hours. After 12 hours, almost everyone who has had a heart attack will have raised levels. Troponin levels may remain high for 1 to 2 weeks after a heart attack.
What are considered high troponin levels?
Having a result between 0.04 and 0.39 ng/ml often indicates a problem with the heart. However, a very small number of healthy people have higher than average levels of troponin. So, if the result is in this range, a doctor may check for other symptoms and order further tests before making a diagnosis.
What is the difference between cardiac troponin I and T?
Cardiac troponin I appears to be a more specific marker of risk of composite cardiovascular disease and coronary heart disease, whereas cardiac troponin T is more strongly associated with risk of non–cardiovascular disease death.
What is troponin I and troponin T?
Definition. A troponin test measures the levels of troponin T or troponin I proteins in the blood. These proteins are released when the heart muscle has been damaged, such as occurs with a heart attack. The more damage there is to the heart, the greater the amount of troponin T and I there will be in the blood.