Cardiac enzymes: importance and measurement
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Cardiac enzymes: importance and measurement


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A blood test to measure the concentration of the cardiac muscle enzymes it is a much more important test than the electrocardiogram to obtain the diagnosis of a myocardial infarction. Know this little spoken exam and know its application.

  • Cardiac enzymes and infarction

  • How to measure the rate of cardiac enzymes

  • Reference values ​​of cardiac enzymes

  • Which means a high rate of cardiac enzymes

  • Symptoms of myocardial infarction

Cardiac enzymes and infarction

The increase in the rate of cardiac enzymes in the blood is evidence of the death of cardiac muscle cells. It is during infarction that myocardial necrosis – the heart muscle – occurs. The cells affected by this necrosis release cardiac enzymes. Measuring the rate of these enzymes in the blood confirms the diagnosis of myocardial infarction.

How to measure the rate of cardiac enzymes

Blood tests make it possible to measure concentration rate of many enzymes, such as SGOT, LDH, CPK MB, myoglobin, troponin I and troponin T. The last two enzymes are the most important and also the easiest to identify.

Reference values ​​of cardiac enzymes

The reference values ​​for myoglobin are between 85 and 90 nanograms per milliliter of blood. Troponin T, in turn, has a reference value in the household of 0.03 ng / ml.

Which means a high rate of cardiac enzymes

A high enzyme rate confirms the occurrence of a heart attack. The higher it is, more serious is the infarction. Successive blood tests allow the health professional to monitor the course of the heart attack.

Symptoms of myocardial infarction

The main symptom of myocardial infarction is severe chest pain. It is accompanied by difficulty in breathing, nausea and vomiting, sweating, feeling of anguish and increased body temperature. In addition, the patient feels numbness on the left side of the body. In the event of a heart attack, a medical care is urgent to save the patient’s life.

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