Cardiac Persantinenuclear stress testinghelps our Detroit cardiologists to assess the width of a patient’s arteries. Persantine is a medication that causes the arteries to temporarily become wider, and healthy arteries will respond to it better than arteries blocked with plaque buildup. There are two portions to the test — a resting portion and a stress portion — and patients should not eat, drink, smoke, or consume caffeine for 12 hours before the test. Patients should also talk to their heart doctor about their medications and whether they are safe to take before testing.
Lexiscan — also called regadenoson) — is a fast-acting stress agent that increases blood flow in the arteries to help our Detroit heart doctors administer certain tests for coronary artery disease. Lexiscan is often used in place of exercise when a patient is unable to walk on a treadmill. Though some patients may feel out of breath or experience headache, nausea or chest discomfort during the test, the effects quickly wear off. Patients should not consume caffeine or other stimulant drugs twelve hours before the test.
The dobutamine stress echo testallows thecardiologistsat the Heart & Vascular Instituteto examine the functioning of the heart and valves for patients unable to run on a treadmill or pedal a stationary bicycle. The test can be used to tell whether a patient’s heart responds normally to activity and stress as well as determine their risk of having coronary artery disease.Dobutamine is a safe medication that stimulates the heart to replicate the stressput on the heart during exercise. Patients should avoid eating, drinking, or consuming caffeine several hours before the test. It is also important not to smoke the day of testing as well as to avoid certain heart medications 24 hours before the procedure — patients should discuss their medications with their Detroit heart doctor.
The nuclear exercise stress test helps our Michigan cardiologists assess blood flow to the heart. By injecting a small amount of a safe radioactive substance and tracing its path through the bloodstream, doctors can compare a patient’s blood flow at rest with the blood flow during activity. Patients will be required to run on a treadmill or use a stationary bike for the activity portion of the test. The entire test should take a few hours, and patients who take medications for heart conditions, asthma, or diabetes should discuss their medicine with their Heart & Vascular Institute physician beforehand. Patients should also avoid caffeine for 24 before the test, should not smoke the day of the test and should not eat or drink for at least four hours beforehand.
Non-Exercise Nuclear Stress Test
While a traditional nuclear stress test uses exercise to determine whether patients experience normal blood flow when their heart muscle is stressed, this test utilizes a safe drug to raise the heart rate. It’s suitable for patients who are unable to exercise. The test will take several hours and have several phases, and patients should discuss pre-test care and food intake habits with their cardiologist.
Exercise Stress Echo
This test can help a cardiologist determine how well the heart handles physical activity to asses a patient’s risk of heart disease. The exercise stress echocardiogram test is performed on a treadmill or exercise bike. The patient will be encouraged to exercise sufficiently in order to increase their heart rate, breathing rate and blood pressure — usually for no more than 7-12 minutes. Most patients do not feel any ill effects from the test, but it is important for patients to talk to their doctors about their medications and whether it is safe to take them the day of testing. Patients should also avoid caffeine and nicotine the day of the test and should not eat or drink at least four hours beforehand.