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Doctor insights on: Positive Cardiac Stress Test

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False positive stress test reason?

False positive stress test reason?

Body habitus: Most common cause of false positive stress test is body habitus. This commonly affects women because the heart rhythm needs to be picked up through their breast tissue. ...Read more

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Dr. Heidi Fowler
3,160 doctors shared insights

Stress (Definition)

Stress affects most people in some way. Acute (sudden, short-term) stress leads to rapid changes throughout the body. Almost all body systems (the heart and blood vessels, immune system, lungs, digestive system, sensory organs, and brain) gear up to meet perceived danger. These stress responses could prove beneficial in a critical, life-or-death situation. Over time, however, repeated stressful situations put a strain on the body that may contribute to physical and psychological problems. Chronic (long-term) stress can have real health consequences and should be addressed like any other health concern. Fortunately, research is showing that lifestyle changes and stress-reduction techniques can help people learn ...Read more


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Could nuclear stress tests be false?

Could nuclear stress tests be false?

Yes...: Yes...Nuclear stress tests can have false positive results. There are different types of nuclear stress tests. There is treadmill vs. Pharmacologic and there is spect vs. Pet. There are also many different tracers such as thallium or technetium for spect and ammonia or rubidium for pet. Each type of test has its own possible pitfalls. Artifacts are often the case of false positive. ...Read more

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My stress test results read " positive exercise stress test for ischemia by EKG criteria. What does that mean?

My stress test results read " positive exercise stress test for ischemia by EKG criteria. What does that mean?

This means that the: EKG portion of your stress test had changes in the waveforms that have been known to be associated with blockages of the coronary arteries. Unfortunately, greater than 15% of the time this is inaccurate in women. Less than 5% of the time in men. This is why we always do stress testing in women along with nuclear imaging. If the nuclear imaging is negative then the EKG changes are FALSE positive. ...Read more

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Echocardiogram good, blood tests good, stress test good except for reversible ischemia but test had 10% false positives should I trust the test ?

Echocardiogram good, blood tests good, stress test good except for reversible ischemia but test had 10% false positives should I trust the test ?

Screening test: Stress test is a screening test to determine if ischemia is present. It has good although not perfect reliability. You should discuss the results and next steps with your cardiologist. ...Read more

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Can pregnancy blood test give false negative. 3 days late, urine test negative and blood test negative too?

Can pregnancy blood test give false negative. 3 days late, urine test negative and blood test negative too?

False negative PG: A false pregnancy test is possible however, in this case you also have a negative blood pregnancy test which is far more accurate. ...Read more

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I have had regular stress test. Nuclear stress test echocardiogram and heart catherization. All normal what's chance missed blockage or pulm htn?

I have had regular stress test. Nuclear stress test echocardiogram and heart catherization. All normal what's chance missed blockage or pulm htn?

Zero: There's no chance for blockage. If your pulmonary artery pressure was reported on your echo, than there's no chance that's been missed either. ...Read more

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Had echocardiogram, nuclear stress test w cardiolite, EKG and 30 day holter. Does the echo and nuclear test rule out CAD or any potential blockages?

Had echocardiogram, nuclear stress test w cardiolite, EKG and 30 day holter. Does the echo and nuclear test rule out CAD or any potential blockages?

Tests: in your age group the tests you had suggest that you presently have no significant problems with coronary blood flow. You won't get a guarantee for the future but good diet, exercise along with no smoking and medical follow up will be prudent. ...Read more

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What does a positive stress test for pro-vocable mayocardial ischemia mean?

What does a positive stress test for pro-vocable mayocardial ischemia mean?

Blockage: It means that when your heart needs it, your arteries are incapable of delivering blood evenly and sufficiently to all of the heart muscle. This often means blockages in the heart arteries. Your cardiologist can tell you more. ...Read more

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Will a stress test also test lung function?

Generally no: There is something called a cardiopulmonary exercise stress test that does check lung and cardiac function but a regular cardiac stress test does not test lung function. ...Read more

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Positive HIV screener test at blood donation... Negative IFA and Negative NAT... False positive?

Positive HIV screener test at blood donation... Negative IFA and Negative NAT... False positive?

Yes: The initial screening test for HIV is very sensitive, but not very specific. The back up screening tests are much more specific for HIV. ...Read more

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Myocardial perfusion pet stress test with persantine had caffiene within 24 hours of test ?

Myocardial perfusion pet stress test with persantine had caffiene within 24 hours of test ?

No need to worry: You didn't mention whether the test was positive. Even then caffeine induced heart rate increase should not cause any problems. Hope you don't smoke. ...Read more

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Erosive gastritis. h.pylori blood test positive, breath test positive, stool antigen test negative, biopsy negative. what to do ?

Erosive gastritis. h.pylori blood test positive, breath test positive, stool antigen test negative, biopsy negative.  what to do ?

Treat it: The positive H. pylori antibody test is not a reliable indicator of current infection. The gold standard for H. pylori treatment is the gastric biopsy, and this is negative in this patient. However, I am impressed by the positive breath test and erosive gastritis. I would have expected stool antigen to be positive, as it mirrors the breath test. Given the discrepant results, treat the patient. ...Read more

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Stress test or heart cath for beter results ?

Stress test or heart cath for beter results 
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Low vs ?Higher Value: Stress tests only capable of detecting very advanced disease, ?chances of heart attack & do nothing to solve issues (i quit doing these 1995). Angiogram with PTCA option has risks (usually small) but can see problems & offers opportunity to open arteries & decrease symptoms at same time. The bigger issues are optimizing lipoproteins (nmr particle test), hba1c & bp, etc. To ??? disease progression. ...Read more

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I've had several ECG chest xrays CRP blood test and a negative troponin test I do have ectopic beats can this be anxiety related?

I've had several ECG chest xrays CRP blood test and a negative troponin test I do have ectopic beats can this be anxiety related?

Yes, but: Mild cardiac abnormalities like this can also be caused by sleep apnea. Sounds like a holter monitor and a sleep study would not be bad ideas. Thyroid studies should also be done. ...Read more

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What all does a heart ultrasound, holter and heart stress test detect?

What all does a heart ultrasound, holter and heart stress test detect?

Many things. : The echocardiogram or heart ultrasound, gives an accurate picture of the heart's anatomy. An ekg demonstrates the cardiac rhythm. A holter moniters the cardiac rhythm over time- say 12 or 24 hours. These measure different aspects of heart function and are helpful in assessing heart function thoroughly. ...Read more

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What would an echo stress test show....That a regular echo test doesn't?

Change w/exercise : When excercised, or 'stressed', the heart needs more oxegen to function properly than at rest. If it's not getting that increase, the muscle will start to move in abnormal ways, which will show up on the echo. At rest, because it needs less oxegen, it may be getting enough, so it will look normal then. ...Read more

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Exercise Stress Test (Definition)

Recording an ekg while walking up a steeper & steeper incline, at a faster & faster rate, so as to increase heart contraction intensity & rate of contraction, thus blood flow needed by the heart muscle. However, atherosclerosis does not narrow arteries, clots do, & the ekg only detects major qualitative differences in capillary blood flow. Thus only severe artery disease ...Read more


Dr. Al Hegab
3 doctors shared insights

Stress Test (Definition)

A stress test is a cardiac test which can include walking on a treadmill and monitoring your heart while you are walking. They can also inject you with a nuclear material and do a more comprehensive scan on your heart to check for blockage. They can also do a chemical stress test which omits the need to ...Read more