Troponin is the most specific cardiac marker. Troponins are proteins found in the heart and skeletal muscle fibres that regulate muscular contraction. It is elevated within a few hours of heart damage and remains elevated for upto two weeks.
Normally , troponin is present in very small quantites in the blood. When there is damage to...
Normal Range : < 0.04 ng/ml
Probable heart attack : > 0.40 ng/ml
When to get Tested
When there is suspicion of Heart attack (following s/s – Chest pain , discomfort or pressure , rapid heart rate , skipping a beat, shortness of breath , fatigue, nausea, vomiting, cold sweat, pain in back, arm ,jaw, neck or stomach)
When symptoms worsen or occurs at rest in a person with stable angina
Congestive heart failure
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