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Doctor insights on: Influenza Found On Rapid Diagnostic Test

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Dr. Jon Fishburn
4 doctors shared insights

Influenza Found On Rapid Diagnostic Test (Overview)

Means you have been exposed to the virus, if symptomatic then have the disease if not can be incubating it.


Dr. Jon Fishburn
4 doctors shared insights

Influenza Found On Rapid Diagnostic Test (Overview)

Means you have been exposed to the virus, if symptomatic then have the disease if not can be incubating it.


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Pt in Kuwait, low risk sex activity. PCR equivocal. Repeating. Other tests neg. his question is this test done the same US, Germany, London,test +/-?

Pt in Kuwait, low risk sex activity. PCR equivocal. Repeating. Other tests neg. his question is this test done the same US, Germany, London,test +/-?

Depends: PCR is very specific and sensitive, but all tests have a false positive rate, and for PCR, the number is very small. I don't think it should matter where the test is redone as long as the technique is the same or similar ...Read more

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How reliable negative result of p24 antigen and hiv antibody test at 45 days? percent of people get accurate result on the said test by this period?

How reliable negative result of p24 antigen and hiv antibody test  at 45 days? percent of people get accurate result on the said test by this period?

No worries!: This combination of tests is 100% conclusive any time 4 weeks or more after the last possible exposure. Nobody with negative resutls at 45 days is later found to have HIV. So all is well; you can move on without worry. Best wishes and stay safe! ...Read more

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All antibody tests negative at around the 10 week mark except for RNA PCR test which says RNA detected, below 20 copies/ml instead of undetected.

All antibody tests negative at around the 10 week mark except for RNA PCR test which says RNA detected, below 20 copies/ml instead of undetected.

Unclear question: If you are concerned about HIV tests, a negative result at 10 weeks after exposure is not definitive. You should repeat the tests at 6 months after exposure. Wish you good health! ...Read more

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Took HIV Antibody 1&2 Test and P24 Antigen test 10 days after PEP. Results non-reactive. A bit early. All other blood panel metrics normal. Thoughts?

Took HIV Antibody 1&2 Test and P24 Antigen test 10 days after PEP. Results non-reactive. A bit early. All other blood panel metrics normal. Thoughts?

Not conclusive: These results are reassuring; it is unlikely you were infected. However, the results are not conclusive. Following PEP, it is necessary to test for HIV longer than otherwise, maybe up to 4 months. (PEP is great when needed, but it prolongs the time of uncertainty about whether infection occurred.) Discuss with the clinic or doctor who prescribed the PEP and follow his or her advice. ...Read more

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Is a negative HIV ELISA (eia) test, and dna/pcr test at 5 months conclusive? ...Even if symptoms persist, leaky gut, enteritis, white tongue, etc...

Is a negative HIV ELISA (eia) test, and dna/pcr test at 5 months conclusive? ...Even if symptoms persist, leaky gut, enteritis, white tongue, etc...

You're fine: Please forgive my frankness. You already know from your reading on the internet that your nucleic acid test is proof that you're not infected. And you say you haven't had unprotected sex. Your are doing yourself a disservice by reading internet junk. "leaky gut" is scientifically discredited. Lots of folks have white junk on their tongue -- tried dental flossing it off? Read about somatization. ...Read more

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2 blood tests done for hla b27: one was pos. And one was neg. (pcr). What is the difference of tests & what would trigger a positive with first test?

2 blood tests done for hla b27: one was pos. And one was neg. (pcr). What is the difference of tests & what would trigger a positive with first test?

HLAB27: So, one test by pcr, the other test is what? If the two tests were different, do the test that is known to be more sensitive and get two readings of it. ...Read more

Dr. John Chiu Dr. Chiu
2 doctors agreed:
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HIV test negative 8 months with Architect™ analyzer and confirmed with western blot test. What are the chances it will turn positive?

Dr. John Chiu Dr. Chiu
2 doctors agreed:
HIV test negative 8 months with Architect™ analyzer and confirmed with western blot test. What are the chances it will turn positive?

Exposure: If you have not had sex or blood exposure since then, the risk is about zero. But if you have, then it depends on whether your partner(s) has HIV or not . ...Read more

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Which HIV tests promise earlier results? Is the HIV ag/ab 4th gen test not one of them?

Which HIV tests promise earlier results?  Is the HIV ag/ab 4th gen test not one of them?

Rapid results: There are mini ELISA kits available with results in 15 minutes. and they are good! You could also go to your local health department to be tested or doctors office. If you ask me though..don't be concerned with the rapidity that you get the results back because you may sacrifice accuracy. Just go to your doctor and have them run a Western Blot or conventional HIV screening test on your serum. ...Read more

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A lab reported my ANA test result -ve, cut off rate: 1.117, sample rate: 0.198. They used immulite 2000 rai analyzer. Is it standard, reliable report?

A lab reported my ANA test result -ve, cut off rate: 1.117, sample rate: 0.198. They used immulite 2000 rai analyzer. Is it standard, reliable report?

It's just a lab: As a pathologist, i'm well-acquainted with the pitfalls of all ANA testing. The real decision is whether to treat your joint pain as lupus or one of its ana-positive variants. Many healthy folks have some ANA on board. The value that's returned from the lab is only one piece of the puzzle in working up rheumatologic disease. ...Read more

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How accurate is the limulus amebocyte lysate (lal) test in detecting gram neg bacterial endotoxins? What r limitations of this test?

How accurate is the limulus amebocyte lysate (lal) test in detecting gram neg bacterial endotoxins?  What r limitations of this test?

Newer test available: Endotoxin (lipopolysaccharide) are heat-stable breakdown products of gram-negative bacteria as the main constituent of the outer cell membrane. Lal test has been the standard for years, only practical method for direct detection of endotoxin. Recently, a similar assay based on recombinant factor c has been introduced. An elisa test, endolisa reportedly has advantages over the established lal. ...Read more

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What are odds of having false negatives had4oraquicks 1rapid blood test and eia antibody w/ reflexes for hiv 1/2. Took tests 10 years after event. ?

You don't have HIV: I recognize you as having asked the same question multiple times. Please don't allow yourself to remain a victim of these thoughts. Life is hard enough without obsessing over something that happened long ago. We've all had misadventures and mishaps, and we learn to love ourselves in spite of it and even cherish the things we've learned from. Health and friendship. ...Read more

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Hiv DNA PCR dectected on 4/08/13 and antibody negative.Still now 6/3/13 8 weeks later still show HIV anitbody negative. What are your thoughts? Is the PCR a false positive?

Hiv DNA PCR dectected on 4/08/13 and antibody negative.Still now 6/3/13  8 weeks later still show HIV anitbody negative. What are your thoughts? Is the PCR a false positive?

Not necessarily: Is it really the dna or the RNA pcr? The dna qualitative pcr is the most sensitive test and may become positive months before antibody is detected. The quantitative RNA pcr that is used for monitoring also becomes positive early. Antibodies may not develop until 3 months from the infection. So, they may still develop. If you have not seen a HIV physician and are not on art, see one asap. ...Read more

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Are negative pricks on skin testing for food usually accurate?

Are negative pricks on skin testing for food usually accurate?

Yes: Yes, this is a good way to assess if one has significant food allergies, as well as air- born allergies. ...Read more

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2 TB skin tests. Bumps measured 15cm. RN stated I possibly have LTBI & ordered QuantiFERON Gold in-tube test. Could anything cause a false positive?

2 TB skin tests. Bumps measured 15cm. RN stated I possibly have LTBI & ordered QuantiFERON Gold in-tube test. Could anything cause a false positive?

Not at 15cm, but...: The bump is more likely 15mm, because 15cm is 6 inches and HUGE. A 15mm bump on a screening test is big but may still be a false positive (a screening test means the patient has NO symptoms of tuberculosis). If a patient has contacted somebody with TB, or has current symptoms, she likely has a true positive unless her bump is due to past BCG vaccine. The Quantiferon-TB blood test is very accurate ...Read more

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Dr. Liawaty Ho Dr. Ho
1 doctor agreed:
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If u had a early cdt lung blood test and out of six tests the mage4 was a little over cutoff and u are ANA positive 1:640 spec. Suggest cancer?

Dr. Liawaty Ho Dr. Ho
1 doctor agreed:
If u had a early cdt lung blood test and out of six tests the mage4 was a little over cutoff and u are ANA positive 1:640 spec. Suggest cancer?

Autoimmune: I can't say much about the earlycdt test- it is not primetime at this time. To me, the test has to go through validity and quality control first and there is no a good clinical trial that backed up this test- i won't use it at this time. If you don't know how to interprete the result-it only creates anxiety &unnecessary test.You may have autoimmune disease-especially if you have symptoms. D/w md. ...Read more

Dr. Jeffrey Stevens
2 doctors shared insights

Influenza (Definition)

Influenza is a viral respiratory infection that causes cough, fever, chills, sore throat, muscle aches and headache. While most healthy people suffer few complications from the flu, it can be deadly for pregnant women, babies and children, the elderly and those with weak immune systems. That's why it's so important to get the flu shot to protect yourself ...Read more