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Doctor insights on: Enterovirus Rna Ql Pcr

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Is hiv-1-pcr quantitative and HIV RNA PCR quantitative same tests?can DNA PCR test be quantitative?

Is hiv-1-pcr quantitative and HIV RNA PCR quantitative same tests?can DNA PCR test be quantitative?

HIV testing: Yes. Viral testing can be qualitative or quantitative. Most HIV RNA testing is quantitative. ...Read more

Polymerase Chain Reaction (Definition)

Polymerase chain reaction is a method of finding a specific piece of dna and copying it over and over again until there is enough to study. The technique allows a scientist to detect very small amounts of dna in a swab sample then reproduce enough of it to study it. It is very sensisitive for detecting the presence of certain bacteria and is also used in doing other ...Read more


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Advia hep.C antibody +, HCV RNA -. 3 months later Architect hep C Ab -, HCV RNA -. 2 Hep C Ab Verification tests -.Is Advia hepC Ab test false positiv

Advia hep.C antibody +, HCV RNA -. 3 months later Architect hep C Ab -, HCV RNA -. 2 Hep C Ab Verification tests -.Is Advia hepC Ab test false positiv

Without more info: and only the data you submitted in your question, I would put it together the way you did: the first Advia hepC Ab test was a false positive. I presume other experts who arranged your follow-up testing have suggested the same interpretation. Stay well:) ...Read more

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Is RNA PCR test for HIV accurate?

Is RNA PCR test for HIV accurate?

Yes: The nucleic acid test for HIV becomes positive about 20 days after exposure to the virus. ...Read more

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Hep B Virus (HBV) DNA Qualitative (Detection) - COBAS TaqMan , Hep C RNA Detection by Taqman detection will be conclusive on 47 days? Any retest need?

Hep B Virus (HBV) DNA Qualitative (Detection) - COBAS TaqMan , Hep C RNA Detection by Taqman detection will be conclusive on 47 days? Any retest need?

No: Both Hepatitis B and C viruses may be detected 30 to 60 days after infection by antigen detection or 60-120 days with antibody testing. Direct HBV DNA and HCV RNA testing can potentially detect infection earlier, within 2-4 weeks after infection, so being tested at 47 days post-exposure with a negative nucleic acid test for both is very likely to be a true negative ...Read more

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Advia hep. C antibody +,HCV RNA -. 3 months later Architect hep. C antibody -, HCV RNA -. 2 hep C Ab Verification tests-.Can above person donate blood?

Advia hep. C antibody +,HCV RNA -. 3 months later Architect hep. C antibody -, HCV RNA -. 2 hep C Ab Verification tests-.Can above person donate blood?

May be: You ought to disclose these results to the blood bank so that they may make a determination on your eligibility to donate along with other health factors. I commend you for considering doing your civic duty. ...Read more

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Ebv panel. Ebv nuc antigen igg=157, early ag igg=12.7, EBV VCA igg=112, EBV VCA igm=10.6. Please explain. Concerned about spleen. Symp=fatigue/fog?

Ebv panel. Ebv nuc antigen  igg=157, early ag igg=12.7, EBV VCA igg=112, EBV VCA igm=10.6.  Please explain.  Concerned about spleen. Symp=fatigue/fog?

? Active infection: It's impossible for me to answer with certainty since i don't know the normal ranges your lab uses. If early ag & vca igm are elevated above normal this indicates active ebv infection.I don't know if it is acute or chronic without knowing your history. If chronic i see that as a sign of poor immune function.Immune-boosting herbs/supplements & IV vit c drips may help, but find why immunity is poor. ...Read more

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Hepatitis c (HCV) antibody is reactive. The hepatitis C Recombinant Immunoblat Assay(riba) confirmation test is non reactive.Is antibody false positiv

Hepatitis c (HCV) antibody is reactive. The hepatitis C Recombinant Immunoblat Assay(riba) confirmation test is non reactive.Is antibody false positiv

Well : A positive hepatitis C antibody test with a negative or in a test usually is not a false positive that usually means someone had hepatitis C infection and their body cleared the infection and they are now immune to hepatitis C. Do a Healthtap visit or see a primary care physician for specific diagnosis ...Read more

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Monotest (target values <1.0=negativ). Values: EBV VCA IgG-Ak 39.9; EBV VCA IgM-Ak 1.1; EBNA-1 IgG-Ak 14.7; EBV DNA (PCR) negativ. What does it mean?

Monotest (target values <1.0=negativ). Values: EBV VCA IgG-Ak 39.9; EBV VCA IgM-Ak 1.1; EBNA-1 IgG-Ak 14.7; EBV DNA (PCR) negativ. What does it mean?

Ask who ordered: The test, but in general, they were suspecting EBV infection/Infectious mononucleosis, which looks negative, the final diagnosis is with the doctor who ordered the blood test. Clinical picture is important, finally we treat patients not lab results, good luck ...Read more

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Hiv ab,1/2, eia with relx result repeatedly reactive. HIV 1/2ab differentiation w/refl hiv1 antibody negative hiv2 antibody negative. pos or neg hiv?

Hiv ab,1/2, eia with relx result repeatedly reactive. HIV 1/2ab differentiation w/refl hiv1 antibody negative hiv2 antibody negative. pos or neg hiv?

It depends: In a situation like this you have one positive test and one negative test. The lab should run a tie-breaker test (HIV RNA) to give you a real answer. Also, the first test may be an older test 2nd or 3rd generation) instead of the latest 4th generation) test. It also depends on if you have flu-Like symptoms. Seek help from a specialist in HIV who can help you understand. ...Read more

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IMy HBV test results (red cross): Hepatitis B Surface Antigen: Nonreactive; Hepatitis B Core Antibodies: Reactive; HBV PCR: Negative. Do I have HBV?

IMy HBV test results (red cross): Hepatitis B Surface Antigen: Nonreactive; Hepatitis B Core Antibodies: Reactive; HBV PCR: Negative.  Do I have HBV?

Cured, but...: If a person's Hep B surface antigen is nonreactive, that means the lab does not find pieces of the surface of the virus. If her Hep B virus PCR is negative, that means the lab does not find the virus's DNA (genes). If the core antibody is reactive that means her immune system REMEMBERS being infected with Hep B. She is cured, but some viral DNA might be attached to her own human DNA in her liver. ...Read more

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Test result was "Hepatitis Surface Antibody - Nonreactive" and "Hepatitis B Surface Antigen - Reactive", "HBS AG Confirmation - Nonconfirm".

Hmmmm: Got me beat. A reactive Hep B antigen indicates that you have Hepatitis B. However, It looks like the test was NOT confirmed. My experience with labs is that their report format could use some improvement and you may be misreading this. Talk to the doc who ordered the test. ...Read more

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HBV test results: Hepatitis B Surface Antigen: Nonreactive; Hepatitis B Core Antibodies: Reactive; HBV PCR: Negative. Need any medication or vaccine?

HBV test results: Hepatitis B Surface Antigen: Nonreactive; Hepatitis B Core Antibodies: Reactive; HBV PCR: Negative.  Need any medication or vaccine?

Excellent question: and your story stumps many a doctor, often! :) a lot of the recommendations depend on - are you someone with risk factors for HBV? is this the first time that it has been checked? are your liver enzymes normal? are you about to undergo any procedures/ treatments that could put you at risk for HBV? If you have no sig risk factors, yes, I'd vaccinate you if there's potential for exposure. ...Read more

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hepatitis b surface antigen reactive and hepatitis b surface antibody nonreactive and core antibody total reactive and HBV DNA detected sir plz reply?

 hepatitis b surface antigen reactive and hepatitis b surface antibody nonreactive and core antibody total reactive and HBV DNA detected sir plz reply?

You carry hep B: I am assuming you feel well and this was a surprise finding. There are millions of people like yourself. You will require lifelong health care for it unless / until a means of eradicating it is found. You pose no danger to a partner who is immunized. ...Read more

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Window for hcv ab test and hcv rna test?

Window for hcv ab test and hcv rna test?

HCV: Nowadays with polymerase chain reaction technology it is making "window" periods a less discussed issue. In my practice if I suspected a recent infection (say days to weeks old)..this test would show virons in your blood. Once this virus hits your bloodstream it explodes exponentially. Some people are fortunate that their bodies contain the infection..most do not. ...Read more

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Hep B surface Ab - positive, Hep BE antigen - positive, Viral DNA 2000 IU. Acute Hep B DX. Tests don't match the serology timeline? Am I in recovery?

Need expert care: This situation is too complex for safe advice on this forum. You should be seeing an expert in person, or perhaps seek HealthTap's concierge service with an infectious diseases or liver disease expert. ...Read more

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05/05/2016 Siemens Advia Centaur hep C antibody result positive.08/10/2016 Abbott Architect (cmia) hep C antibody result negative.Who is telling truth?

05/05/2016 Siemens Advia Centaur hep C antibody result positive.08/10/2016 Abbott Architect (cmia) hep C antibody result negative.Who is telling truth?

It's not really: a question of truth telling. No test is perfect: the proteins and reactants used in each test will respond to an individual's blood/biologic material, potentially, in a different way. Falsely positive or falsely negative results are not very unusual. You need to decide on a confirmatory strategy with your doctor. Retesting is necessary and an expert can help you weigh the evidence to decide result ...Read more

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Is my 8 wks 2 day PCR RNA + 4th Gen test negative conclusive for HIV infection after vaginal exp? Or do i need to test after 12 wks or it has to be after 13 wks? Pls answer, Thanks for any response

Is my 8 wks 2 day PCR RNA + 4th Gen test negative conclusive for HIV infection after vaginal exp? Or do i need to test after 12 wks or it has to be after 13 wks? Pls answer, Thanks for any response

Relax, Mike: I understand that you're a man worried about HIV after an unprotected episode of intercourse with a woman. The nucleic acid tests are almost always positive by this time -- we can't even estimate the frequency of their turning positive only at 12 weeks because history isn't always accurate. Retest only if you or someone close to you is obsessed over it. Love wisely and well from now on. Cheers. ...Read more

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What is the window period for p42 antigen/ antibody dual 4th gen HIV test? And the window period for HIV RNA PCR test? When can it be conclusive?

What is the window period for p42 antigen/ antibody dual 4th gen HIV test? And the window period for HIV RNA PCR test? When can it be conclusive?

See below: Please consult this site for a detailed answer. Nucleic acid tests are conclusive about a month after acquiring infection. http://www.sfaf.org/hiv-info/testing/hiv-test-window-periods.html ...Read more

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Were can I get HIV RNA PCR test?

Were can I get HIV RNA PCR test?

Almost anywhere: Any doctor can order this, but if there is an std or HIV clinic near you that is a good place to go. Some commercial laboratories may do this without a doctor's order. Call and ask. Good luck and hope this is negative. ...Read more

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How far RNA real time PCR for HIV detection is reliable after 28 days of exposure ?

How far RNA real time PCR for HIV detection is reliable after 28 days of exposure ?

HIV: Real time pcr for HIV RNA negativity means you are negative unless the test was somehow faulty. ...Read more

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Are HIV RNA and HIV PCR the same tests? How soon after potential exposure can you get a conclusive result?

HIV viral load tests: The short answer is 'yes' -since HIV-1 is an RNA virus. We quantify how much virus is there per drop of blood by using PCR technology (polymerase chain reaction if you must know). These days, the tests are extremely good -so after an exposure, this kind of testing could pick up positive results within 2 or 3 weeks. If you think you've been exposed, see an ID doc immediately-they could help w/ meds ...Read more

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Took Truvada 3wks post exp. took it only 21 days. At 7, 8, 10, 11 and 13 wks did 4th G (7,10,13), PCR RNA(8), rapid(11) all negative. Conclusive?

Took Truvada 3wks post exp. took it only 21 days. At 7, 8, 10, 11 and 13 wks did 4th G (7,10,13), PCR RNA(8), rapid(11) all negative. Conclusive?

Nearly so.: To be on the safe side, get a HIV nucleic acid test at 6 months after exposure.
Wish you good health! - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form.
Practice safe sex, if you have sex. ...Read more

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I had a HIV RNA PCR and 4th generation test at 26 days post exposure. Results were negative, I have symptoms, how accurate are these results? Worried

I had a HIV RNA PCR and 4th generation test at 26 days post exposure. Results were negative, I have symptoms, how accurate are these results? Worried

Accurate but...: While the tests you have taken are good, the are not fool-proof. The standard is to retest at 6 months. This gives your body time to form antibodies. Be careful. ...Read more

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Just undergone HIV PCR 2 mos. after risk exposure.Result is NO DETECTABLE LEVEL OF HIV RNA.Does this mean am negative in HIV? Can i stop worrying now?

Repeat in 4 months: You are in all likelihood free of HIV, just to make sure repeat the test in 4 months. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex. ...Read more

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If 1hiv PCR RNA Quant test negative at 40, 105 days, is that enough to understand person has not got hiv?, or need more test on 6 mon? And What tests?

Probably enough: The definitive test to show no HIV infection is a negative antibody test and that should be done a minimum of 6 weeks after intercourse but usually more like 3-6 months. However if a pcr test is negative at 1 month and 3 months that's is essentially conclusive that you are negative, but you should have the Elisa and western blot antibody tests to be sure. ...Read more

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2 wks post exp., truvada for 21 days, end 6wks. At 6&7 wks PCR rna & 4th G results negative .10 & 11 wks negative 4th G and rapid. Could I be + still?

Test at 6 months: At 6 months after exposure, get a HIV nucleic acid test, if negative, that would be definitive.
Wish you good health!
For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form.
Practice safe sex, if you have sex. ...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.

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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Am I HIV free irrespective of a-z persisting symptoms , exposure; I have HIV PCR RNA 5,15 week not det,ab 2,8,15,28,32 neg; or do I need more tests ??

STD, EBV testing: You have had more than enough testing for for HIV. Typically, a sexually active person should have an HIV screen every 3-6 months. Your symptoms suggest another types of infection: You should also be tested for EBV (Epstein Barr virus) and CMV (cytomegalovirus); both can cause mono-like symptoms. Testing for gonorrhea/chlamydia as well as syphilis are also important. ...Read more

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Hi, i'm hcv+ genotype3, RNA pcr(quantitative) is 1730256 iu/ml, is it alarming should I start medicine, my last 2 months lft's r normal please advise.Thnx.

Hi, i'm hcv+ genotype3, RNA pcr(quantitative) is 1730256 iu/ml, is it alarming should I start medicine, my last 2 months lft's r normal please advise.Thnx.

HCV+: Hcv+ genotype3, RNA pcr of 1730256 iu/ml refers to your viral load or how much of the hepatitis virus you're carrying in your blood. Your number is toward the high end of the range. You have normal lft's though. It's more alarming that you're hep c positive and are still having unprotected sex, unless your partner is already infected. An infectious disease doctor can assist with your hep c ?'. ...Read more

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Is 59 days HIV combo + PCR RNA test neg conclusive? Some docs say yes, some say no and need to be tested at 3,6,12 months. What is correct? Some org say 12, 13 lots of confusing info Please answer!

The 3,6,12 is old: based on data that was purely antibody; even the CDC website screws that up. "HIV testing may be concluded 4 months after exposure " http://nccc.ucsf.edu/wp-content/uploads/2014/03/Updated_USPHS_Guidelines_Mgmt_Occupational_Exposures_HIV_Recommendations_PEP.pdf Thing is, nobody including me, believes you have ONLY ONE EXPOSURE lifetime. So, the real situation is to be tested about every 6-12 mo ...Read more

Pcr (Definition)

Polymerase chain reaction is used in molecular biology to amplify copies of dna. It is used in dna cloning for sequencing, functional analysis of genes, identification of genetic finger prints, diagnosis of hereditary ...Read more


Rna (Definition)

This is a building block for dna. Rna is what makes up the double helix and ...Read more