The Stress Test as an Efficient Diagnostic Tool in Medicine ...

The human bodied is designed to do certain things when it is stressed. Certain, predictable biochemical reactions also take place. Your heart working harder is one known reaction to stress. That simply means your blood pressure and heart rate both increase to help your body cope with the stressful situation. A stress test is the ideal method to check how healthy a heart is and how well it could withstand higher stress levels, which is why they are employed.

Your heart needs to have a healthy capacity so it can function properly, even with heavier loads in the mix. Ascertaining that your heart is healthy and normal is the main goal of a stress test, no matter the reason your doctor ordered it. The non-nuclear stress test, namely the one involving exercise, is still used extensively in the medical field. However a treadmill is not always used, and in such situations a stationary bicycle may be used. Special leads are connected to the chest of the patient in order to monitor the heart and it?s electrical activity. A completely normal and healthy heart will reflect in the ECG ? electrocardiogram. The doctor will also be able to see in the ECG if you are having trouble with your heart.

The stress EKG is a very helpful tool for doctors because it can provide an snapshot of how the heart is pumping blood. Also, the walls of the heart can be seen and the movement can supply more information about possible irregularities. Just like other like tests, most doctors are drawn to how the heart responds while in a stressed position. The EKG just gives a picture of the activity of the patient?s heart while in stress. The thing that makes this test beneficial is that it can pick up on blood flow abnormalities that other tests might not have picked up on in relation to blockages.

How reliable the isotope stress test is depends greatly on different variables.

As an example, the image quality must be good and a certain heart rate achieved. A reliable diagnosis can be achieved in practically 85% of people who have coronary artery disease if all these conditions are satisfied. So there is not a guarantee of a 100% accurate diagnosis, and as you read there are other factors that contribute to the accuracy of a diagnosis. There are a wide range of variables that can affect the accuracy of a diagnosis, including false positives. Every kind of cardiac stress test has its benefits and a possible purpose. They assist in helping doctors make the most accurate diagnosis available. Remember that there are certain circumstances with each test that might have an effect on how the results and diagnosis are in terms of accuracy.

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Source: http://www.topics-info.com/health-fitness/the-stress-test-as-an-efficient-diagnostic-tool-in-medicine

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