In healthy adults, the reference range (expected level) of troponin is very low or undetectable. When troponin levels are higher than the reference range that means damaged heart muscle cells are leaking troponin into your blood.

2023年12月18日 · Troponin tests were first used in 1995. They measure the level of troponin in your bloodstream. A higher-than-normal level will tell your doctor that something has damaged your heart...

2023年11月28日 · Normal troponin levels range from 0–0.04 nanograms per milliliter. Very high levels usually indicate that a person has had a heart attack. Learn more.

2024年9月28日 · A troponin level is a useful test that can help in the diagnosis of a heart attack, which is a medical emergency. It can also indicate injury to the heart caused by surgery, inflammation, shock, and more.

2011年11月22日 · Cardiac troponin I (cTnI) levels in a healthy reference population and in an acute coronary syndrome (ACS) population.

Elevated levels of troponin are usually a sign of heart damage. The heart damage could be caused by a heart attack or other stresses on the heart, such as very high blood pressure, congestive heart failure, inflammation of the heart (myocarditis) after a virus such as COVID-19, or another infection.

2023年6月1日 · Normal troponin levels in the blood are very low, but levels can increase due to heart damage, a heart attack (myocardial infarction) or other serious illnesses. What is considered a high level? The normal range is between 0 and 0.4 ng/mL.

2014年11月20日 · 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.

Troponin is a protein found in your muscles, including your heart. When your heart is injured or damaged, troponin is released into your blood. There are many things that can cause your heart to be injured, such as heart surgery, but one of the most common is a heart attack.

Think of Troponin as your heart’s fire alarm. When heart cells get damaged, Troponin levels shoot up like smoke signals. Normal levels stay below 0.04 ng/mL (40 ng/L). Anything higher? Your heart might be crying for help. Fun fact: Troponin is so specific to heart damage that doctors call it the “golden messenger” of heart attacks.