Patients must be fasting for three hours prior to the test. Patients must also be free of caffeine of any type for 24 hours prior to testing. This includes coffee, tea, chocolate, white chocolate, aspirin compounds that contain caffeine, decaffeinated coffee or tea and other sodas which contain caffeine. Patients who are taking medications for lung problems, diabetes mellitus, congestive heart failure and Persantine may need to alter their medications.

A stress test is the common term for an exercise ECG, in which disks are attached to the patient's arms and legs as well as to the chest. While connected to the ECG machine, the patient exercises on a treadmill machine or stationary bicycle. This test reveals if exercising causes (or worsens) the arrhythmia and if there is evidence of inadequate blood flow to the heart (a condition known as ischemia).

Eat a light meal 2 hours prior to the test. Then, do not eat, drink or smoke anything until after the test. Wear comfortable exercising shoes. Wear loose-fitting clothes so you can move freely. Ladies, please wear slacks and bra. Take all prescribed medications including inhalers, insulin (sugar pill) and blood pressure pills.

A stress test is a common test that doctors use to diagnose coronary artery disease. The test helps doctors see how the heart is working. A thallium stress test is a nuclear study in which a radioactive substance is injected into your bloodstream to show how blood flows through your arteries. Doctors can see if parts of the heart muscle are damaged or dead, or if there is a serious narrowing in an artery.

A stress test is usually performed on a treadmill, while the heart activity is being monitored. The main purpose of a stress test is to see if there is any evidence of blocked arteries. If there are blockages, and not enough blood gets through during exercise, changes occur in the EKG's being recorded. Sometimes, a nuclear scan is done as well, to gather additional information about the blood flow.

Proper preparation is the most important thing you can do to help ensure you get the most accurate screening. Your doctor or a medical professional will give you complete instructions on what to do. Before any test, let your doctor know about any medications you are taking because they can affect the screening results.

The first stage of a stress test is only 1.7 mph. If you're okay after 3 minutes at that speed then the speed increases. So just about anyone can take a stress test.

Even a stress test isn't 100% definitive. Certainly someone with a normal stress test is at lower risk than someone with an abnormal one. But plaque in an artery can sometimes go from an undetectable 20% blockage to a critical 99% blockage overnight, much like a volcano erupting. Unfortunately, this sort of situation is almost impossible to predict or prevent. Controlling blood pressure and cholesterol and taking aspirin can help, however. Yes and no.

A stress test may consist of exercise, usually on a treadmill, or a "drug simulated" stress, which uses drugs such as adenosine, dipyridamole or dobutamine. These tests are done to evaluate patients with documented or suspected heart disease. A stress test also helps in the detection of heart disease which may not be producing any symptoms.

Each test in cardiology serves a specific purpose. EBCT coronary artery scanning is the best available screening test for detecting early heart disease, and is usually performed before any of the other cardiac tests, including a stress test. The stress test still has a role to play, and it is useful to determine whether a patient has ischaemia due to severe obstructive coronary artery disease which requires urgent angioplasty or bypass surgery.

Many common laboratory tests require fasting, which means having nothing to eat or drink, except water, for 12 hours prior to your blood draw. You may take any prescribed medications at the usual times. Common tests that require fasting include: If you have questions about a specific laboratory test, please call 630-859-6830.

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