Quick Answer: What Does It Mean If Nuclear Stress Test Is Abnormal?

Can a stress test show a blockage?

Stress tests can detect when arteries have 70 percent or more blockage.

This severe narrowing is what causes the severe chest pain called angina.

But normal results from a stress test do not rule out the possibility of a future heart attack.

This is because a plaque can still rupture, form clots and block an artery..

Should I worry about a stress test?

Stress tests are often a doctor’s first-line diagnostic tool to confirm or rule out heart disease. They can help your doctor begin mapping your course of treatment – which could include more tests to establish the extent of your condition. There’s really no reason for an exercise stress test itself to worry you.

What does it mean to fail a stress test?

An abnormal result in both phases of your stress test is an indication that your heart’s blood flow is poor, regardless of your exertion level. The restricted blood flow suggests significant coronary artery disease.

Does a nuclear stress test hurt?

Injecting the radioactive tracer does not hurt. For the stress test you will have EKG leads placed on your chest and you will be monitored closely. You may walk on a treadmill, ride a bike or receive a medicine. All these will increase your heart rate to stress your heart.

How often should you have a nuclear stress test done?

As of today CMS (Medicare) will only allow nuclear testing every 2 years, if the patient is asymptomatic.

What is the difference between a nuclear stress test and a stress test?

A nuclear stress test is very similar to a regular stress test, except it also includes imaging of your heart and radioactive dye in your veins. This test takes pictures of blood flow to your heart by first injecting radioactive dye (radiopharmaceutical or radiotracer) into your bloodstream before the images are taken.

What is the next step after an abnormal stress test?

Next step: Angiography After a stress test indicates an abnormality, heart specialists turn to a more invasive but also much more informative test, a heart catheterization with angiography. A long, thin tube called a catheter is threaded through blood vessels to the heart.

Will an EKG show a blockage?

Your doctor may use an electrocardiogram to determine or detect: Abnormal heart rhythm (arrhythmias) If blocked or narrowed arteries in your heart (coronary artery disease) are causing chest pain or a heart attack. Whether you have had a previous heart attack.

What are they looking for in a nuclear stress test?

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.

What would cause an abnormal stress test?

Abnormal results may be due to: Reduced blood flow to a part of the heart. The most likely cause is a narrowing or blockage of one or more of the arteries that supply your heart muscle. Scarring of the heart muscle due to a previous heart attack.

How do you know if your mentally stressed?

Some of the psychological and emotional signs that you’re stressed out include:Depression or anxiety.Anger, irritability, or restlessness.Feeling overwhelmed, unmotivated, or unfocused.Trouble sleeping or sleeping too much.Racing thoughts or constant worry.Problems with your memory or concentration.Making bad decisions.

What does a positive stress test mean?

A positive test result occurs where a diagnosis of coronary artery disease (IHD, angina) is definite. Inconclusive. An inconclusive test result is usually due to non-diagnostic ECG changes, or when the test is terminated early due to exhaustion, beforemaximum heart rate or workload is reached.

Can I drive home after a stress test?

You will not be allowed to eat or drink until the medicine used to numb your throat wears off. This usually takes 30 to 60 minutes. You may not drive yourself home after your test. Before coming for your test, arrange for someone to take you home afterwards.

Why do they numb your throat for a nuclear stress test?

A sedative is a medicine that helps you feel relaxed. You are also given medicine (local anesthetic) to numb your throat. This helps you feel more comfortable during the procedure. An exercise stress test measures how your heart deals with the stress of physical activity.

How much radiation do you get from a nuclear stress test?

A coronary artery calcium scan provides about 1 mSv, which is similar to the radiation from a mammogram. With modern techniques, the radiation from a CT angiogram ranges from 2 to 7 mSv, while the radiation from nuclear medicine stress tests ranges from 4 to 10 mSv.

What should I avoid after a nuclear stress test?

Caffeine can alter the test results. Do not eat chocolate or drink coffee, tea, soda, colas or other caffeinated beverages such Mountain Dew or energy drinks. If you are unsure, do not drink it.

Why would a doctor order a nuclear stress test?

A nuclear stress test is an advanced diagnostic tool for finding the cause of new or worsening chest pain, stratifying risk for heart disease, deciding how well treatment is progressing, and/or evaluating recovery after a heart attack. Most of the stress tests performed by Heart House physicians are done in the office.

What are the warning signs of clogged arteries?

Do clogged arteries cause any symptoms?Chest pain.Shortness of breath.Heart palpitations.Weakness or dizziness.Nausea.Sweating.

How long does the dye from a nuclear stress test stay in your system?

How long does the injection stay in my system? The nuclear imaging agent is out of your system within 60 hours, but it is always decaying so it becomes minimal in a relatively short period of time.

How much does a nuclear stress test cost?

For others with less certain indications, nuclear stress tests can lead to unnecessary increased cost ($400-$750 for a nuclear stress test, $80-$275 for a stress echocardiogram, and $15-$70 for a stress electrocardiogram) and significant radiation exposure.

How accurate is a nuclear stress test?

The test also has an estimated 85 percent accuracy rate in determining whether any of a patient’s major coronary vessels, namely the arteries supplying the heart with oxygen, blood and nutrients, is significantly blocked.