Types of Cardiac Stress Tests
- Thallium Stress Test. The Thallium Stress Test is one such test in which thallium is used to show the flow of the blood through the vessels, into the heart.
- Technetium Pyrophosphate Scan. The technetium pyrophosphate scan is another cardiac stress which uses radioactive tracers. ...
- Wall Motion Tests. ...
- Sestamibi Scan. ...
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The stress could be either walking very fast on an inclined treadmill or injection with drugs that ...
There are three main types of stress tests: exercise stress tests, nuclear stress tests, and stress echocardiograms. All types of stress tests may be done in a health care provider's office, outpatient clinic, or hospital.
- Stress ECG (Electrocardiogram) Testing. The most basic type of stress test is a stress ECG. It’s also the most common...
- Stress Echo Testing. Stress echo—or echocardiogram—testing uses ultrasound heart imaging. Medical staff take an...
- Nuclear Stress Testing. Nuclear stress testing also uses heart imaging. Like stress echo...
Type of stress test: Treadmill F M Treadmill + Stress ECHO Treadmill + SPECT Nuc MPI Pharm SPECT Nuclear MPI Pharm PET Nuclear MPI Dobutamine Stress test 70 77% 77-89% 70-75 90% 83-85% 79-90% 2012 ACCF/AHA/ACP/AATS/PCNA/SCAI/STS Guideline for the Diagnosis and Management of Patients With Stable Ischemic Heart Disease MC* - Medicare coverage
- Milena Gebska Md
- 4/17/2017 1:10:52 PM
- Why It's Done
- What You Can Expect
A nuclear stress test uses radioactive dye and an imaging machine to create pictures showing the blood flow to your heart. The test measures blood flow while you are at rest and are exerting yourself, showing areas with poor blood flow or damage in your heart. The test usually involves injecting radioactive dye, then taking two sets of images of your heart — one while you're at rest and another after exertion. A nuclear stress test is one of several types of stress tests that may be performed alone or in combination. Compared with an exercise stress test, a nuclear stress test can help better determine your risk of a heart attack or other cardiac event if your doctor knows or suspects that you have coronary artery disease.
You may need a nuclear stress test if a routine stress test didn't pinpoint the cause of symptoms such as chest pain or shortness of breath. A nuclear stress test may also be used to guide your treatment if you've been diagnosed with a heart condition. Your doctor may recommend a nuclear stress test to: 1. Diagnose coronary artery disease. Your coronary arteries are the major blood vessels that supply your heart with blood, oxygen and nutrients. Coronary artery disease develops when these arteries become damaged or diseased — usually due to a buildup of deposits containing cholesterol and other substances (plaques). If you have symptoms such as chest pain or shortness of breath, a nuclear stress test can help determine if you have coronary artery disease and how severe the condition is. 2. Guide treatment of heart disorders.If you've been diagnosed with coronary artery disease, a nuclear stress test can help your doctor find out how well treatment is working. It may also be used to...
A nuclear stress test is generally safe, and complications are rare. As with any medical procedure, there is a risk of complications, including: 1. Allergic reaction.Though rare, you could be allergic to the radioactive dye that's injected during a nuclear stress test. 2. Abnormal heart rhythms (arrhythmias).Arrhythmias brought on during a stress test usually go away shortly after you stop exercising or the medication wears off. Life-threatening arrhythmias are rare. 3. Heart attack (myocardial infarction).Although extremely rare, it's possible that a nuclear stress test could cause a heart attack. 4. Dizziness or chest pain.These symptoms can occur during a stress test. Other possible signs and symptoms include nausea, shakiness, headache, flushing, shortness of breath and anxiety. These signs and symptoms are usually mild and brief, but tell your doctor if they occur. 5. Low blood pressure.Blood pressure may drop during or immediately after exercise, possibly causing you to feel d...
A nuclear stress test may be performed in combination with an exercise stress test, in which you walk on a treadmill. If you aren't able to exercise, you'll receive a drug through an IV that mimics exercise by increasing blood flow to your heart. A nuclear stress test can take two or more hours, depending on the radioactive material and imaging tests used.
Your doctor will discuss your nuclear stress test results with you. Your results could show: 1. Normal blood flow during exercise and rest.You may not need further tests. 2. Normal blood flow during rest, but not during exercise.Part of your heart isn't receiving enough blood when you're exerting yourself. This might mean that you have one or more blocked arteries (coronary artery disease). 3. Low blood flow during rest and exercise.Part of your heart isn't getting enough blood at all times, which could be due to severe coronary artery disease or a previous heart attack. 4. Lack of radioactive dye in parts of your heart.Areas of your heart that don't show the radioactive dye have tissue damage from a heart attack. If you don't have enough blood flow through your heart, you may need to undergo coronary angiography. This test looks directly at the blood vessels supplying your heart. If you have severe blockages, you may need a coronary intervention (angioplasty and stent placement) or...
- Why It's Done
- What You Can Expect
- Clinical Trials
A stress test, also called an exercise stress test, shows how your heart works during physical activity. Because exercise makes your heart pump harder and faster, an exercise stress test can reveal problems with blood flow within your heart. A stress test usually involves walking on a treadmill or riding a stationary bike while your heart rhythm, blood pressure and breathing are monitored. Or you'll receive a drug that mimics the effects of exercise. Your doctor may recommend a stress test if you have signs or symptoms of coronary artery disease or an abnormal heart rhythm (arrhythmia). A stress test can help: 1. Guide treatment decisions 2. Determine how well heart treatment is working 3. Diagnose the severity of an existing heart condition
Your doctor may recommend a stress test to: 1. Diagnose coronary artery disease.Your coronary arteries are the major blood vessels that supply your heart with blood, oxygen and nutrients. Coronary artery disease develops when these arteries become damaged or diseased — usually due to a buildup of deposits containing cholesterol and other substances (plaques). 2. Diagnose heart rhythm problems (arrhythmias).Heart arrhythmias occur when the electrical signals that coordinate your heartbeat don't work properly. An arrhythmia can cause your heart to beat too fast, too slowly or irregularly. 3. Guide treatment of heart disorders.If you've already been diagnosed with a heart condition, an exercise stress test can help your doctor determine if your current treatment is working. The test results also help your doctor decide on the best treatment for you. 4. Check your heart before surgery.Your doctor may use a stress test to determine when you can safely have surgery, such as valve replacem...
A stress test is generally safe. Complications are rare. Possible complications of an exercise stress test are: 1. Low blood pressure.Your blood pressure may drop during or immediately after exercise, possibly causing you to feel dizzy or faint. The problem should go away after you stop exercising. 2. Abnormal heart rhythms (arrhythmias).Arrhythmias that occur during an exercise stress test usually go away soon after you stop exercising. 3. Heart attack (myocardial infarction).Although very rare, it's possible that an exercise stress test could cause a heart attack.
A stress test usually takes about an hour, including both prep time and the time it takes to do the actual test. The actual exercise test takes only around 15 minutes. You'll usually walk on a treadmill or pedal a stationary bicycle. If you aren't able to exercise, you'll receive a drug through an IV that mimics the effect of exercise on your heart.
If the information gathered during your exercise stress test shows your heart function to be normal, you may not need any further tests. However, if the results are normal and your symptoms continue to worsen, your doctor might recommend a nuclear stress test or another stress test that includes an echocardiogram before and after exercise or medications to increase blood flow to your heart. These tests are more accurate and provide more information about your heart function, but they are also more expensive. If your stress test results suggest that you might have coronary artery disease or show an arrhythmia, your doctor will use the information to develop a treatment plan. You may need additional tests, such as a coronary angiogram. If you had a stress test to help determine treatment for a heart condition, your doctor will use the results to plan or change your treatment.
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