How does the stress test work?

and a dobutamin stress test works by imitating the heart reaction to exercise without the need for physical exertion. This test is carried out by administration of a drug called dobutamine to increase heart rate. Another compound called Cardiolite® is also often administered during the test to help create clear images of coronary arteries. During the test, two sets of pictures are taken: a set that shows the heart reaction during the resting phase and the second set showing the heart reaction during the stress phase. Dobutamine stress test can be used as a simple and accurate way to discover coronary problems in individuals who are unable to test on a treadmill. Depending on whether the docutamine stress test is performed using an electrocardiogram (ECG) or nuclear display, the test can take anywhere from one to three or more hours. The doctor will most have Rádly Give a list of instructions that you should follow on the day of the test. May include instructions to attitudes before the test and avoid caffeine and ciGaretam that can cause testing problems.

Dobutamine stress test does not require physical effort, so most of the test takes place when sitting or lying. If electrocardiogram do not be carried out, it is used to monitor the patient's heart rate, starting with resting reading. Blood pressure reads are collected and an echocardiogram is often performed to look at the patient's heart before the stress test itself.

in nuclear stress test Dobutamine, Cardiolite®, also known as SEZAMIBI, is injected and pictures are taken by gamma camera. Cardiolite® contains trace amounts of radioactive material to see the coronary arteries in the pictures. Every time it is admislammed, it needs at least 30 minutes to circulate the body.

After taking the rest images, the documented is injected into the vein of intravenous (IV) lines. It takes about 12 to 15 minutes and another cardiolite® cane be injected immediately after. Dobutamine increases the patient's heart rate and provides a response of a similar exercise. In nuclear and electrocardiogram tests, ECG is used to monitor the patient because it is administered.

In addition to increased heart rate, other side effects such as headache, dizziness and shortness of breath may occur during the stress testing test. Although these reactions are usually normal, laboratory workers should be reported because they could indicate a serious problem. Throughout the process, the patient should be monitored and medicines may be stopped if unexpected side effects occur.

Every set of pictures - rest and stressed - takes about 15 minutes. When the images are taken, the patient is usually asked to lie with his left arm raised over his head. This allows the camera or ultrasonic converter to take the necessary images depending on the test. After completion of the test, patients are usually monitored until the heart freeQuiens and blood pressure will not return to normal.