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Doctor insights on: False Positive Mammogram

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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

Dr. Barry Rosen
665 doctors shared insights

Mammogram (Definition)

A mammogram is the "gold standard" screening test for breast cancer. It's well established that yearly 'grams will DX cancers well before they are palpable, leading to earlier diagnoses and saved lives. All experts agree to begin yearly mammograms by age 50; many (including myself) believe the pro's outweigh the con's to begin at 40. Regrettably, less than half of all women ...Read more


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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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Are false positive herpes test likely?

Are false positive herpes test likely?

No: A positive antibody means you're infected with herpes. That doesn't mean you're developing outrbreaks, but it does mean that you at least have latent herpes somewhere in your body. A positive culture or pcr for herpes means you have an active lesion. ...Read more

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Positive quantiferon gold test but negative xray?

Positive quantiferon gold test but negative xray?

See below: It means that you have been exposed to tb. A chest x-ray that is positive would indicate either past or active infection. ...Read more

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Ana screen, ifa positive a (negative) means?

Ana screen, ifa positive a  (negative)   means?

Nothing by itself: One person in four tests positive. The vast majority of these people have no problems. The clinical picture is key, and how high the titer is may be helpful. ...Read more

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What causes false positive HCV antibody test results?

What causes false positive HCV antibody test results?

Misinformed?: Who told you that your hep c test was false? If you have no viral load that means you cleared an infection. Are you sure you are getting the right advice? ...Read more

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Are false positive HIV tests rare?

Are false positive HIV tests rare?

HIV testing: This depends upon the test employed. They are generally both sensitive and specific but false positive results do occur. This question can be overcome with further testing, the most specific being PCR for HIV RNA. You should be seen by an expert in the management of HIV disease. ...Read more

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Would HPV cause a false positive HIV ELISA test?

Would HPV cause a false positive HIV ELISA test?

It shouldn't: Hpv shouldn't cause a false positive elisa. But see what the follow up western blot shows. ...Read more

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Can hida scans show false positives?

Can hida scans show false positives?

Yes, but not common: Yes, just about any study can have false positives, however it is not common with a hida scan. Things which can interfere with the study and cause a false positive include, prolonged fasting(more than 24hrs), very poor liver function, non-fasting state (less than 4hrs), prior surgery to remove the gallbladder, pancreatitis, TPN (total parenteral nutrition). ...Read more

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Incidence of false false positive PPD in lupus patients?

Incidence of false false positive PPD in lupus patients?

Zero: Lupus does not cause falsely positive ppds. If the PPD is positive, have a quantiferon gold test for tb. This is more accurate. ...Read more

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Mantoux test positive?

Mantoux test positive?

Work up needed: At the very least it may suggest that you have been exposed to tuberculosis. You should visit with your doctor to have questions asked about whether or not you have TB symptoms to suggest infection such as do you have a cough? Unexplained night sweats? Unexplained weight loss, fevers or chills and fatigue? You also need to have a chest x ray performed - since organism is usually inhaled. ...Read more

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Can MS cause false positive ELISA HIV test?

Can MS cause false positive ELISA HIV test?

No: MS does not affect blood tests, and specifically does not cause positive ELISA HIV test, See infectious disease doctor. ...Read more

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Can pregnacy test give you a false postive than 3 negatives?

Can pregnacy test give you a false postive than 3 negatives?

Sure: The pregnancy tests available over the counter are accurate over 98% of the time, but occasionally false results do occur. ...Read more

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Can ANA test be false negative for lupus?

Can ANA test be false negative for lupus?

Lupus: Has specific criteria for diagnosis, ANA is just one of them and canot be relied on by itself for a diagnosis. ...Read more