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Doctor insights on: Positive Affirmations

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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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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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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 do these results mean? Hbsag positive, hbs ab negative, hbeag negative, hbeab positive and hbc ab positive?

What do these results mean? Hbsag positive, hbs ab negative, hbeag negative, hbeab positive and hbc ab positive?

This is serious: It is likely that you are infected with two different hepatitis viruses and need to be under the care of a physician who's willing to explain lab results and get you treated. Please don't let this go. Your life may well depend on your being appropriately assertive. ...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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Hepb surface antigen positive, confirmatory test negative, antibody and core negative, should I worry?

Hepb surface antigen positive, confirmatory test negative, antibody and core negative, should I worry?

Possibly: Do not understand how initial test was positive and "confirmatory" test negative. Need to repeat these, although you may be in the "window" period, when antigen is being consumed by forming antibody and neither is measurable. Wait 3 months and retest antibody titers. By then you may be hepb antibody and core antibody positive, in which case you are immune. ...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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Vdrl weekly reactive, tpha negative and HIV negative then?

Vdrl weekly reactive, tpha negative and HIV negative then?

VDRL is non specific: Negative tpa (alteplase) indicate no syphilis . You may need to repeat test. It will be better practice protected sex. ...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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The odds of a false positive HIV ELISA test?

Unlikely: All tests are subject to prior probability( the likelihood of a condition before any tests) and a refined probability, modified by test results. That being said the HIV eia test is among the most accurate in medicine, and when confirmed by a western blot, approaches 100% dr ted butler. ...Read more

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Can an HIV antibody screening test be positive but the western blot negative?

Can an HIV antibody screening test be positive but the western blot negative?

Yes: There are 2 reasons for this kind of result: (1) a false positive, or (2) early infection before seroconversion. In someone at low risk for HIV without symptoms, another negative WB in 1 month means there's no infection. In someone at risk or with symptoms of acute infection, a viral load can be helpful. The new 4th generation antigen/antibody tests will eliminate this problem. ...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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Hcg 50 positive blood test two negative urine please help.

Hcg 50 positive blood test two negative urine please help.

Recheck blood: You need to have the blood levels checked again. You expect the level to about double in 2 days with a normal pregnancy. ...Read more