During times of increased stress, our bodies are designed to do certain things. On top of that, various biochemical reactions also take place that can be anticipated. One such reaction to stress in an increase cardiac output. To put it differently, heart rate and blood pressure rise, providing your body with the strength it requires to handle the situation causing you stress. A doctor will perform a stress test to determine how your heart can handle the extra demands, which is what stress tests excel at.
The treadmill stress test is commonly known as a basic type of cardiac stress test. The name implies the setting and general procedure for this process. Much depends on the person's situation, and sometimes the extent of the treadmill test is to have the patient walk on the treadmill while the heart's response is being monitored via an EKG, or electrocardiogram. The EKG can reveal any possible changes that are due to the induced pressures of walking the treadmill. Frequently, the patient is upset because the treadmill requires you to walk at a brisk pace. Obviously, this situation put a larger amount of pressure on the heart and can be very effective for disclosing any problems.
The stress EKG test is very helpful for doctors because it can give an exact picture of how well the heart pumps blood. Also, the walls of the heart are exposed and the motion can provide more clues about abnormalities or issues with the heart. Just like with similar tests, doctors want to know how the heart responds. The EKG just gives a picture of the activity of the patient's heart while in stress. The advantage of this test is that it can show blood flow deficiencies, due to blockage, that may not be detected when other tests are performed.
There is a reliability factor involved with the isotope stress test, and the degree of reliability depends on several key factors.
The clarity of the image is important as well as whether or not the subject has achieved a certain target heart rate. A reliable diagnosis can be achieved in practically 85% of people who have coronary artery disease if all these conditions are satisfied. Since there are plenty of other factors that have an impact on accuracy, there is little chance of obtaining an infallible diagnosis. There are a wide range of variables that can affect the accuracy of a diagnosis, including false positives.
Nuclear stress tests are an important tool for doctors in the diagnosis of various forms of heart disease. If you need to have on done, then ensure that you pose as many questions as possible and that you get answers from your doctor. You need to ask plenty of questions because otherwise you can't learn about what is going on and what your situation is.
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