Table of Contents
What happens if nuclear stress test is abnormal?
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.
What does a persantine stress test show?
Healthy arteries will respond better to Persantine than arteries that are diseased, so the scan done after you are given the injection will show the areas of the heart that are supplied by healthy arteries and those that might have blockages or are diseased. Nuclear imaging material is also given.
What is the next step after an abnormal nuclear stress test?
The nuclear stress test has the ability to quantify the severity of abnormality. Further tests for coronary artery disease after a nuclear stress test should be considered based on several different factors. If needed, usual next step is a coronary angiogram.
What abnormalities can be detected on a stress test?
Abnormalities in blood pressure, heart rate, or ECG or worsening physical symptoms could point to coronary artery disease (CAD): fatty deposits (plaques) that reduce the flow of oxygen-rich blood to the heart muscle.
What is a reversible perfusion abnormality?
Stress-induced perfusion abnormalities in regions that exhibit normal perfusion at rest are termed reversible perfusion defects, and such regions represent viable, ischemic tissue with blunted coronary blood flow reserve.
What does it mean if you fail a stress test?
Stress test results You do not have significant coronary artery disease (70% or greater artery blockage). You could still have a heart attack if a smaller blockage (less than 70%) ruptures and forms a clot. Your doctor may want to do further testing if you have other risk factors for heart disease that raise concern.
What are the symptoms of heart blockage?
What are the symptoms of heart block?
- Fainting, feeling dizzy.
- Chest pain.
- Feeling tired.
- Shortness of breath.
- Heart palpitations.
- Rapid breathing.
- Nausea.
Can anxiety cause abnormal stress test result?
Additionally, some manifestations of anxiety disorders can lead to abnormal ECG readings. When false positives occur for rhythm irregularities or other concerns, preexisting anxiety or even test-invoked nervousness may be factors.
What is a perfusion defect in the lungs?
Conclusions: Perfusion defects are associated with an increase in pulmonary artery pressure (PAP) and functional limitation. Age, longer times between symptom onset and diagnosis, initial pulmonary vascular obstruction and previous venous thromboembolism were associated with perfusion defects.
What is a positive myocardial perfusion scan?
Myocardial perfusion is an imaging test. It’s also called a nuclear stress test. It is done to show how well blood flows through the heart muscle. It also shows how well the heart muscle is pumping. For example, after a heart attack, it may be done to find areas of damaged heart muscle.