Troponin T Test Results, Normal Range and More
Sep 19, 2022
The Troponin T test is a simple blood test that is performed to measure the level of troponin in the blood. Troponin is a protein that is found in the heart muscles and not in the blood. The level of troponin increases in the blood only if the heart muscles are damaged, like during a heart attack.
There are several other reasons as well that may cause elevated Troponin T levels in the blood, but a heart attack is the most common among them. A human heart is a fragile muscle that pumps blood to the entire body, supporting its functions. Pumping blood requires regular beating of the heart to ensure that the blood flows in the body without any congestion.
Troponins are the proteins required for the contraction of the skeletal and cardiac muscles. Skeletal muscles help move the limbs and other parts of the body, while cardiac muscles form the wall of the heart and are the part that suffers most damaged during a heart attack. During a heart attack, the flow of blood through the coronary arteries is blocked or limited, which makes the heart muscle cells starve for oxygen. This is when troponin proteins are released into the bloodstream, acting as a biomarker that indicates cardiac injury.
A high-sensitive troponin T test is a very useful diagnostic tool that allows for the detection of even very low levels of troponin T in the blood, which can help diagnose heart attacks more quickly and accurately. The troponin T test can also be used to diagnose other heart-related conditions, like coronary artery disease, angina, congestive heart failure, and cardiomyopathy.
Purpose of the Troponin T Test
An individual may be asked to undergo a troponin T test as a cardiac marker test if their doctor suspects them having suffered a heart attack. A troponin T test is also prescribed to individuals who are displaying symptoms related to cardiac arrest, like chest pain, rapid heart rate, cold sweats, nausea, vomiting, fatigue, back pain, jaw contractions, etc. When a healthcare provider suspects that there is a chance of an individual having has a heart attack or heart muscle damage, they use a troponin T test to check the troponin T levels in the bloodstream. An elevated level of troponin T in the blood indicates higher risks of having damaged heart muscles or having had a heart attack. Some of the most common symptoms of cardiac issues that may lead a healthcare practitioner to prescribe a troponin T serum test include:
- Pain or discomfort in the chest
- Pain in the arm, neck, shoulder, back, upper abdomen, or jaw
- Shortness of breath
- Unexplained fatigue or weakness
- Pale or blue lips and skin
- Constant sweating
- Rapid heart rate
- Confusion, dizziness, or a feeling of dilemma
The results of the troponin T test are interpreted in conjunction with the individual’s medical history, symptoms, and other related health factors.
Understanding the Troponin T Test Results
Generally, the troponin T levels in the blood are undetectable with regular blood tests, as the protein is normally present in trace amounts in the blood. The normal value of troponin T in the blood is generally less than 0.04 ng/ml. However, the normal range of troponin T levels is different for men and women and may also vary from one lab to another. A value above 0.40 ng/ml may indicate elevated risks of an individual having a heart attack. Some of the most common causes of high troponin T levels include:
- Abnormally fast heart rate
- Blockage in the lung artery
- Congestive heart failure
- High blood pressure in lung arteries
- Inflammation of the heart muscles
- Chronic kidney diseases
- Weakening of the heart muscles
High troponin T levels in the blood may not always be caused due to heart muscle damage or heart failure, and a healthcare provider might recommend follow-up tests like an Electrocardiography (ECG) to find and address the underlying cause of the condition.
The procedure of the troponin T test is very simple and straightforward and only requires a small amount of blood, which is drawn from a vein in the arm and sent for testing. The price of the troponin T test is worth it as the test is quite useful for diagnosing a heart attack in a timely manner. A healthy lifestyle with a nutritious diet and regular exercising is the best way to prevent heart diseases and heart attacks in the long run. It is advisable to consult a doctor in case an individual is experiencing even some of the symptoms related to heart muscle damage so a treatment may be suggested in time.
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