The cardiologists most important resource is the stress test when a diagnosis needs to be made to look for heart disease of any kind. Doctors, looking to achieve the best results, must work with highly trained technicians while performing the test. There are several different tests that each have their own individual and highly specific requirements. Stress tests for cardiac disease have degrees of reliability that are influenced by testing and other conditions. One thing doctors want to discover is just how much stress the heart can take before it impacts the behavior or functioning of the heart. The exercise is the one that is most widely recognized though it has a specific application it is better suited for.

The treadmill test type is a very common type. As the name implies, the setting and basis structure of the test is disclosed. Most of it depends on the person's circumstances and the magnitude of the treadmill test is to have the patient walk on the treadmill while their heart is hooked up to an EKG and monitored for its possible reactions. 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 scenario can place a huge burned on the patient's heart and is ideal for revealing any major problems.

The simplistic stress test is a system that is not as complex as other similar stress tests such as the nuclear stress test. During a generic test like the treadmill or standing bicycle test, the heart of the patient has to be observed. It can be observed with an EKG or ECG monitor. The patient then has to walk at a ordinary speed on the treadmill. Gradually, the pace of the treadmill is increased so the demand on the heart is increased, or the heart is stressed. While this is going on, the doctor is there doing tests and also available in case anything goes wrong. Also, during this time, the patient's blood pressure and rate are observed.

There are different variables that can have an impact on how reliable the isotope stress test is.

For example, a target heart rate must be attained, and of course the image quality must be sufficient. If these vital conditions are satisfied, such a stress test can return a reliable diagnosis in almost 85% of subjects who suffer from coronary artery disease. Thus, there is no full guarantee of an accurate diagnosis and as you can see there are other contributing factors. 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 serve to help doctors make the most accurate diagnosis possible. Consider the fact that there are optimum condition involving each that might change or effect the outcome of the diagnosis accuracy.