Heart disease is diagnosed using several laboratory tests and imaging studies. A key part of analysing a patient’s medical and family history, risk factors, physical examination and the link between these findings and test results and procedures in Cardiac diagnostics Sydney.
Some of these usual tests used to diagnose heart disease include:
- Blood Test
Laboratory tests are used to identify risk factors for heart disease. These include detecting fat, cholesterol, and blood lipid components, including LDL, HDL, and Triglycerides. Blood sugar and Glycosylated haemoglobin are measured to see diabetes. C-reactive protein (CRP) and other protein markers such as Apolipoprotein A1 and B detect inflammation that can lead to heart disease.
Heart muscle cells die and release proteins from the bloodstream during a heart attack. Blood tests can detect the number of proteins present in the blood. High levels of this protein are a sign of a recent heart attack. One of the symptoms of a heart attack is Cardiac Troponin-T.
- EKG / ECG (Electrocardiogram)
This is a painless and simple test that records the heart’s electrical activity. The patient is tied to a device with a few pieces or strips placed over the chest, wrists, and ankles. A small portable machine records heart activities on a line of graph paper.
Tests show how fast the heart beats and their rhythm. The timing and strength of signals passing through the heart are also evident. EKG / ECG can help diagnose heart attacks, angina attacks, arrhythmias etc.
- Pressure Test
In this test, the patient is made to work harder, e.g., run on a treadmill or exercise, while EKG / ECG tracks are placed over their bodies. Those who do not exercise are given pills to increase their heart rate. The test finds the effect of cardiovascular exercise.
In atherosclerosis and heart disease patients, plaque-constricted arteries cannot supply enough blood to the heart muscle while beating faster. It can cause chest pains and shortness of breath. EKG / ECG pattern, arrhythmias, etc., indicates the possibility of coronary disease.
- Echocardiography
Echocardiography test mainly uses sound waves to create a moving heart image. This is also a painless test where the probe is wrapped around the chest, and the machine makes a heart image on the monitor. Echocardiography provides information on the condition, size, operation, valves and heart chambers.
Echocardiography may be combined with Doppler to show areas where blood is not found in the heart. It shows some areas of the muscle that are generally not accessible and previous injuries to the heart muscle. These all tests can be done in Cardiac diagnostics Sydney to measure the health of a patient’s heart.
- Chest X-Ray
This test shows the shape and size of the heart and large blood vessels. X-Ray is a rare test used in diagnosing heart disease as it does not provide additional information on echocardiography and other imaging studies.
- MRI Of the Heart
(Magnetic resonance imaging) Cardiac MRI uses radio waves, magnets, and computers to create images of the heart. MRI provides a 3D image of moving and heart-shaped images.
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