Nuclear Pharmacological Stress Test is a test designed for patients who are unable to exercise well enough to increase their heart rate to a level for an accurate test to be performed. Through an I.V., a medication is given that will increase your heart rate as if you were exercising.
This test detects changes in your ECG in response to an increasing exercise load, and helps your provider detect signs of heart problems that may not be noticed at rest. During the test, you are observed for changes in your heart rate or rhythm, and changes in your blood pressure. This test is done in association with imaging (see the information about imaging). The imaging portion of the test shows areas of the heart that take up none, or only a small portion, of the substance. In this way, the test can indicate whether there are areas of the heart muscle that have diminished blood flow.