What are adenosine stress tests?
Adenosine stress tests, also known as adenosine nuclear stress tests, are a diagnostic tool used to observe the heart under tension. These tests are usually ordered when a doctor feels that the patient may have an irregularity of the heart that affects blood flow. Doctors can order adenosine stress tests whether the patient is unable to undergo an exercise test for any reason. When preparing for adenosine stress tests, it is important to follow all measures to prevent the test results from being distorted.
The doctor can order a stress test for many different reasons. In some cases, stress tests can be simply listed as part of a complete physical control. Doctors may also ask for a test to have a personal or family history of heart problems, has symptoms that may indicate heart problems, or if irregularity is detected during the basic medical examination.
When a stress test is required, doctors may decidethat patients undergo an exercise -based test. This type of test requirements patient to walk or run on the treadmill while connected to the heart monitoring devices to see the heart react to the effort. If the patient cannot walk on the treadmill due to illness, injury or other conditions, adenosine stress tests may be ordered instead. Unlike adenosine tests, adenosine tests simulate the effects of the heart -called adenosine drug.
During the test, the patient will usually be asked to lie on the table, while a special camera called a gamma camera takes the initial heart photograph. After recording these images, the patient is given intravenous adenosine injection and slightly radioactive isotope. Adenosin quickly begins to simulate cardiovascular stress, while isotope allows the gamma camera to record blood flow in the heart and around the heart.Some patients may feel a little unpleasant during T; Common side effects of adenosine may include chest pain and strenuous breathing. A physician or technician usually remains in the room throughout the test and should be consulted if the side effects become serious.
Proper preparations for adenosine stress tests are important because some activities can affect the accuracy of the test. Most of the time patients are not allowed to eat or drink six hours before the test; It can help plan the test first thing in the morning to avoid a long time without food. Caffeine should be avoided 24 hours before the test, as it can distort results. The patient must also consult doctors about all current medicines and follow the instructions of skipping any doses.