Search results
Results from the WOW.Com Content Network
A cardiac stress test is a cardiological examination that evaluates the cardiovascular system's response to external stress within a controlled clinical setting. This stress response can be induced through physical exercise (usually a treadmill) or intravenous pharmacological stimulation of heart rate.
The Langendorff heart or isolated perfused heart assay is an ex vivo technique used in pharmacological and physiological research using animals and also humans. [1] Named after the German physiologist Oskar Langendorff , this technique allows the examination of cardiac contractile strength and heart rate without the complications of an intact ...
Cardiac stress testing is used to determine to assess cardiac function and to disclose evidence of exertion-related cardiac hypoxia. Radionuclide testing using thallium or technetium can be used to demonstrate areas of perfusion abnormalities. With a maximal stress test the level of exercise is increased until the person's heart rate will not ...
Cardiac PET (or cardiac positron emission tomography) is a form of diagnostic imaging in which the presence of heart disease is evaluated using a PET scanner. Intravenous injection of a radiotracer is performed as part of the scan. Commonly used radiotracers are Rubidium-82, Nitrogen-13 ammonia and Oxygen-15 water. [1]
In animal biology, there are various forms of biological stress and biological stress testing, such as the cardiac stress test in humans, often administered for biomedical reasons. In exercise physiology , training zones are often determined in relation to metabolic stress protocols, quantifying energy production , oxygen uptake , or blood ...
Retrieved from "https://en.wikipedia.org/w/index.php?title=Cardiac_stress_testing&oldid=16544942"https://en.wikipedia.org/w/index.php?title=Cardiac_stress_testing&oldid
This test helps diagnose heart rhythm problems and assess the damage to a person's heart from a heart attack. Echocardiogram: This test uses sound waves to produce a video image of the heart. With this test, the four chambers of the heart can be evaluated. Stress test: A stress test, also called an exercise stress test, provides information ...
Coronary steal is also the mechanism in most drug-based cardiac stress tests; When a patient is incapable of doing physical activity they are given a vasodilator that produces a "cardiac steal syndrome" as a diagnostic procedure. The test result is positive if the patient's symptoms reappear or if ECG alterations are seen. [citation needed]