28 day duo test conclusive. I also had a 33 day Dr Wajahat Baig MBBS , FCPS (Medicine) , Experience of dealing with all types of Infectious disorders 13,960 Satisfied Customers Why do some Dr. 9% at 90 days, after any potential contact. ? Thank you for your time! What are the chances of a positive on a fourth gen hiv duo test @ 6wk after testing negative at 4 wks? some experts use to claim a duo test is conclusive at 4 weeks, yet recently most are saying 6. Asked for Male, 26 Years 19125 Views v Jul 8, 2025 · A negative 4th generation HIV duo test at 93 days (approximately 3 months) after exposure is highly accurate and conclusive in ruling out HIV infection, even if Post-Exposure Prophylaxis (PEP) was taken. ? and cdc says 3 months? Nov 14, 2014 · Is the rapid HIV P24 Antigen/Antibody Combo or Duo test conclusive at 28 days? CDC HIV Guidelines Part 2 “ The 2014 CDC Guidelines ” Now what about the latest guidelines concerning HIV Testing? Some of my patients have observed, “There are certain websites that allege they have the latest information and guidelines, and these claim that the latest, most up-to-date guidelines teach that The CDC Considers a 4th generation duo test 100% conclusive after 6 weeks. 28 Day Duo Test Conclusive Between 12-28 days you can take a 4th generation HIV test. It is almost conclusive at this stage. Mar 23, 2018 · The HIV DUO test, also called the HIV 4th generation test, is a combined antigen/antibody test used to detect early HIV infection with high accuracy. 9 percent accuracy at 90 days post-exposure. s or “experts” say 4th gen duo hiv test are conclusive at 28 days (4wks) and others say it’s conclusive at DoctorRaza Medical Book the 4th Generation HIV Duo Combo Test for INR 999. After 35 days, after statistical examination of over 12 million test results they found only 5 cases of a result changing. has guidance changed/ any known 4 wk neg went pos 6? Jun 22, 2022 · The fourth generation test is able to detect HIV approximately 2 to 6 weeks (13 to 42 days) after infection, and is most accurate after a 28-day window period. Word of the day. Duo test at 4 weeks post exposure - result negative 3. Which one is true? Hi. I were never at risk from my situation, I hope so. An early negative result at 28 days (1 month) needs to be confirmed with a second test 90 days (3 months) after the exposure. This P24 antigen part can detect only the HIV 1 antigen and not the HIV 2. I did the following tests: - 39 days: duo test hiv 1,2 and/or P24 - 42 days: meia hiv1,2 - 44 days: rapid duo test alere - 44 days: duo test hiv1,2 and/or P24 they have all been done at different laboratories. Jun 6, 2023 · : 4th gen HIV test is conclusive at 6 weeks after potential exposure, Visit this site for info: HIV test window periods https://www. Testing labs performing these assays are highly reliable when certified. Better2Know’s HIV DUO test is 99. The result is conclusive or further need any test. Duo test at 7 weeks post exposure - result negative My questions are 1. Gurmukh Singh answered I’ve seen everything from after 45 days (for a 4th generation test using blood from a vein), after 33 days (RNA), 90 days (after all tests apparently), and 6 months (also all tests). Jul 2, 2014 · plokoon81MemberReged: 06/19/14Posts: 52Loc: United KingdomNEW CDC Testing guidelines with 4th GEN HIV test #276923 - 06/30/14 09:35 PM Hi everyone -The CDC has indeed updated testing guidelines Jan 7, 2025 · The test is particularly noteworthy for its high accuracy rates, with 99. The window period of the P24 antigen test is between 1-8 weeks post infection with HIV and about 95% people infected test positive during that period. . A 4th generation HIV duo test detects both antibodies and p24 antigen, improving early detection. How accurate is a HIV DUO test at 28 days? This Better2Know HIV test is extremely accurate at 28 days and is now the test recommended by the UK’s current Guidelines on HIV testing. HIV/Aids expert - 2016/10/10. Nov 13, 2014 · So, in a nutshell, according to the UK Guidelines, the rapid HIV Combo/Duo test is not conclusive at 28 days. Would a "not detected" PCR viral load test at day 28 be considered conclusive? It looks for the virus directly in blood, I had a low risk exposure, have done PCR test but am still so anxious. Nov 14, 2014 · “There are certain websites that allege they have the latest information and guidelines, and these claim that the latest, most up-to-date guidelines teach that the rapid HIV Combo/Duo test is conclusive when performed at 28 days. Sep 16, 2023 · 16 September 2023. 8% accurate at 28 days. They leave it up to the patient and Dr to test further based on exposure. 20 days is probably a bit soon to count it as conclusive. I am very worried and wanted to know if it can be considered as conclusive? is it true that the CDC advocates duo test at 28 days? May 31, 2022 · From the report attached (attachments removed to protect the patient's identity), the HIV duo test after 30 days of exposure is negative. Sep 18, 2017 · Is 28 day result conclusive timing for a hiv neg test - 4th gen duo (hiv 1 & 2 inc p24)? on web and this forum, conflicting communications. This will also detect the p24 antigen as well as HIV 1 and 2 antibodies in your blood sample, but the test will be conducted in our certified laboratory. gov/ This HIV DUO test, including p24 antigen, is considered 99. This was at either 108 or 109 days post sex. 8% accurate at 28 days, increasing to a 99. 999% at 42 days. At 28 days post-exposure, a negative result is highly reliable but may not be fully conclusive. If HIV is not treated, it can lead to AIDS (acquired immunodeficiency syndrome). The 28-Day HIV DUO test can detect the virus from 28 days after infection. How accurate is HIV Duo test exactly after 28 days? If the result is non conclusive is it required for a re-test again in 45 days? Asked for Male, 33 Years 1591 Views v Point of care tests (self-sampling, self-testing and rapid tests: 90 days to detect 99% of samples. Jan 6, 2018 · Are HIV 1 and 2 with p24 duo test after 28 days conclusive? This Premium Q&A, reviewed and published, features a real conversation between an iCliniq user and a physician. Despite its high reliability, there are still some nuances to consider, especially when it comes to the 45-day mark. They are the most conservative institution on the planet, and most experts would struggle to identify a single instance of a test after 28 days changing, but apparently the CDC identified one or two outliers after a study Nov 18, 2014 · Currently, both the UK and CDC’s guidelines do not consider the rapid HIV p24 antigen/antibody test (also known as the rapid HIV Combo or rapid HIV Duo test) conclusive at 28 days post-exposure. 2: After getting the test on 18th day post exposure can it be necessary to take ELISA test as Duo test is looking for both the components and I hope you are from Is the rapid HIV P24 Antigen/Antibody Combo or Duo test conclusive at 28 days? The UK Guidelines Part 1 “The UK Guidelines” My patients have often asked me the following questions concerning the rapid 4th generation HIV Test so readily available in Singapore’s clinics. The guidelines actually stressed the need for an additional HIV test at 3 months after exposure to “definitively exclude HIV infection. Jan 12, 2015 · They have made an update to say that a DUO test at 28 days can be taken as conclusive. A positive test result is routinely confirmed using a different type of test called western blot. The 4th generation test will detect both antigen and antibody. Testing earlier needs a confirmatory test three months after the risk. Aug 19, 2010 · No this test will detect 95% of infections at day 28, but a confirmatory test 90 days after the exposure is needed to be conclusive. hiv duo,hiv duo combo test accuracy,hiv duo test conclusive 28 days,hiv duo test after 45 days,hiv duo 4th generation test non reactive,hiv duo test window p Jul 8, 2025 · A 4th generation duo test and qualitative RNA test taken 83 days post-exposure and 53 days after completing PEP can be considered conclusive for HIV status. The western blot test looks for immune responses to specific HIV proteins and is 100% accurate as a confirmatory test. This means that if you test negative for HIV 28 days after exposure, the result is almost certainly accurate. I did hiv combo test 49 and 65 days of after the exposure. UK guidelines recommend a window period of six weeks for a 4th generation antigen/antibody test (BHIVA/BASHH 2020). 2. Free home sample collection included. P24 Antigen detection part: This can be considered conclusive by 3-4 weeks after the risky activity as far as HIV 1 detection is concerned. Despite all your assurance, my anxiety took over (like most people on this forum) and I went to get a rapid blood test done today being 10 weeks and 2 days. Antibody tests can only offer a small glimmer of hope in the current timeline. I have had 13 tests so far, with my last one being a 4th generation duo test using blood from one of my veins. 9 percent at 90 days after potential contact. Related: All topics, HIV testing. The duo test (4th generation) will detect P24 antigen from around 12 days in some people peaking at 28 days, after that P24 drops as antibodies are made. At 4 weeks (28 days): The test is highly reliable, with most people who are infected showing a positive result by this time. Are results of the test totally conclusive only at 28+ days? 3. Learn about post-exposure prophylaxis and testing guidelines. I took a 4th generation combo / duo test on May 14 exactly 28 days past last exposure for peace of mind. YOu need to wait until 6 weeks after the last PEP dose for accurate testing. Jan 25, 2024 · When is a 4th generation HIV test conclusive? 4th generation HIV tests are considered conclusive at 28 days after exposure. Jul 8, 2025 · A negative 4th generation HIV duo test at 93 days post-exposure is conclusive for ruling out HIV infection, even if post-exposure prophylaxis (PEP) was taken Question : Dear Sir, I'd be really thankful if you could clear up my Confusion about 14 days, 28 days, 6 weeks and even 3 months waiting time after possible exposure to HIV AIDS-infection and before testing. Is was negative as you predicted! The nurse kept on talking about 6 months, what's your take on that? Would you consider this to be 100% conclusive Dr. ” Is my negative DUO test after 28 days conclusive . It's about 50% reliable at 18 days, meaning it will catch about half of infections. I took HIV DUO test 21 days after exposure. There is no need to wait 3 months. After 87 days, my antibody test was negative, and after 105 days, the HIV 1 and 2 CMIA (chemiluminescent microparticle immunoassay) combo antigen and antibody test was negative. Helpful - 0 Comment wantonjoe Hi Vance, Nov 6, 2017 · A 12-week screening test for HIV (human immunodeficiency virus) antibodies is considered conclusive, and a CMIA (chemiluminescent microparticle immunoassay) fourth generation test at 59 days of exposure with a window period of two to three weeks is very reliable, but it is not considered conclusive. Jun 10, 2014 · HIV: The hiv (1/2) abbott architect combo ag/ab test is most commonly referred to as a 4th generation (or duo or combo) test. Are all the test results 100% conclusive? Kindly advise. Is the rapid HIV P24 Antigen/Antibody Combo or Duo test conclusive at 28 days? The UK Guidelines Part 1 “The UK Guidelines” My patients have often asked me the following questions concerning the rapid 4th generation HIV Test so readily available in Singapore’s clinics. My questions are 1. You need to test for other STIs as well if you had a ri The most common time to take a fourth generation test is 28 days after exposure to the virus. Antibody test Also known as a third generation test, it is able to detect HIV in approximately 97% of people within 3 to 12 weeks (21 to 84 days) of infection. 10 years ago i had unprotected sex with hiv+ men who's not on meds (i did not take prep). I don’t understand how if a 28 day Duo test when negative is conclusive, why does the information on i-Base say … The HIV Duo test, also known as the fourth-generation test, is designed to detect both HIV antibodies and the p24 antigen. Can these tests be considered conclusive for HIV or should I do another one at 13weeks 2. In case of high-risk exposures like penetrative anal or vaginal intercourse, the 28 day test is also considered as conclusive based on some guidelines however there are still recommendations in some centers to test again 12 weeks post-exposure. Medical Conditions - Hiv Duo Test The HIV duo test gets its name from the antigen and antibodies it detects. It takes about 4-5 days for you to get your report hiv duo,hiv duo combo test accuracy,hiv duo test conclusive 28 days,hiv duo test after 45 days,hiv duo 4th generation test non reactive,hiv duo test window p HIV testing: The p24 antigen test can detect the p24 protein within 10–14 days after infection with HIV. Some guidelines recommend retesting at 3 months to confirm status due to the window period variability. Why do you say the 28 day Duo test at 4 weeks is conclusive? Everywhere else says that you need to retest at 3 months. Read Responses (3) Follow 2 Responses Sort by: Helpful Oldest Newest Sara_MHModerator hiv duo,hiv duo combo test accuracy,hiv duo test conclusive 28 days,hiv duo test after 45 days,hiv duo 4th generation test non reactive,hiv duo test window p A 4th generation duo test is considered conclusive in absolute terms after 42 days (6 weeks), but if you can find an expert that has found a negative turn positive after a 28 day duo test (absent PEP) I wish you luck. Jul 8, 2025 · A negative 4th generation duo test at 93 days post-exposure is conclusive for ruling out HIV infection, even if post-exposure prophylaxis (PEP) was taken. Better2know's hiv duo test is 99. Its been 45 days post exposure and planing for tridot hiv test what is accuracy at that time my duo ag/ab was negative on 28 day index value . Detect HIV-1 & 2 antibodies and p24 antigen as early as 28 days post-exposure. It is generally considered quite accurate, and at 28 days post-exposure, it can provide a reliable indication of your HIV status. Hi sir, after risky exposure did pcr rna 28 days negative, elisa 34 days negative and duo test 45 days negative. HIV DUO test (4th generation test) has two different parts and therefore called as DUO. My exposure was performing oral sex on a male Hi all, I was wondering why the CDC considers a DUO test after 45 days conclusive while many here report the DUO being conclusive after 28 days. But my psychic mind tells me your exposure was a handjob which had 0 risk and you need to let it go. Are we still to trust this test st 28 days? I ask because I started seeing someone special and I’ve had a negative duo at 30 days and a beg oraquick at 81 days despite symptoms. Essentially, if you were exposed to HIV and did not seroconvert within the first 28 days, a negative result after 30 days can be considered conclusive. Is DUO test official and licenced method for EU Nov 19, 2022 · Is a negative hiv rna pcr test conclusive at 21 days after a potential exposure? what about a negative 4th gen duo test at 28 days? any help/advice is greatly appreciated? A doctor has provided 1 answer Dr. A fourth generation test is considered conclusive after six weeks, if no other confirmation is done. 89 people found this helpful 89 Mar 19, 2025 · If you have taken the HIV Duo test at 30 days post-exposure and received a negative result, it is essential to understand what this means. InstagramThe 28-day HIV Duo th-generation combination tests are accurate and reliable diagnostic HIV test. Jan 28, 2020 · Yes, conclusive: The 4th generation HIV tests (for both HIV antibody and p24 antigen, therefore also called "duo" or "combo" tests) are conclusive any time 4 weeks or more after the last possible exposure. Our clinician will send your blood sample to our laboratory and the results are usually available the same day as the sample is received in the laboratory. 1. It looks for antibody and p24 antigen. ” – BASHH Nov 2014 Up till now, BASHH does not consider the laboratory HIV Combo Test “conclusive” at 28 days or 4 weeks, although it is “highly likely” to exclude HIV infection. We send a small blood sample to our laboratory and the results are usually available in a few hours. Jul 17, 2017 · I do unprotected sex with a prostitute after 28 days i go for hiv duo test the result is non reactive 0. 07 is it conclusive? hiv test after 45 days,hiv combo test after 45 days,hiv duo test after 45 days,hiv test conclusive after 3 months,hiv negative after 6 months,hiv test after Apr 16, 2021 · An infection can be detected roughly 18 to 45 days after exposure. At 12 weeks (3 months): The result is considered conclusive. Some doctors said 4 weeks pcr rna negative denotes risk free others said duo test conclusive at 45 days some others said 3 months after exposure it?s conclusive some others said after 6 months only conclusive. Mar 18, 2021 · 6 weeks needed: If PEP doesn't work -- that is, if HIV infection occurs despite PEP treatment -- it delays the time to conclusive testing by a few weeks. Jun 19, 2021 · Nearly conclusive: The combo test is nearly conclusive (98-99%) at 4 weeks, but definitely by 6 weeks. What is accuracy of this kind of test after 21 days? 2. This accuracy increases to 99. This test is also known as the “rapid HIV combo test,” the “rapid HIV Duo test,” or more correctly, the “rapid Yes it is: More than 95% after 4 weeks of exposure, conclusive > 99% at 12 weeks. I'm pretty sure you will test negative, wish you all the best! Nowadays test are very accurate and 3 weeks should be sufficient to most of the people. However, it is better to go for an HIV antibody test after three months of exposure to be relieved of anxiety and definitive results. Aug 21, 2022 · The results were negative. Jun 13, 2023 · Discover the optimal time to test for HIV during and after completion of PEP. It is called a "DUO" test because it combines a test for antibodies for the HIV 1 and 2 strains of the virus, with an antigen test for the p24 antigen. Customer: Why do some Dr. cdc. [@ Nov 18, 2014 · Currently, both the UK and CDC’s guidelines do not consider the rapid HIV p24 antigen/antibody test (also known as the rapid HIV Combo or rapid HIV Duo test) conclusive at 28 days post-exposure. At 6 weeks: The test is even more reliable, with very few false negatives. The p24 antigen are detectable as early as 28 days of sexual exposure. s or “experts” say 4th gen duo hiv test are conclusive at 28 days (4wks) and others say it’s conclusive at 12 weeks 90 days? Learn about the accuracy and reliability of the 4th generation HIV test at 5 weeks and find out where to get tested at Statcare. Can anything affect the result of my HIV test? While some experts consider results at 28 days indicative, the test is generally conclusive at 12 weeks (90 days) post-exposure for nearly 99. Hence HIV infection can be detected early, resulting in a better prognosis. It can detect HIV infection in about 16 days post exposure on an average. Pls Teak don´t be angry I know what you have to say. In future, consider on-demand pre-exposure prophylaxis (PrEP): 3 doses of anti-HIV drugs before and for 2 days after exposure. Let's connect over a call so that we can discuss your concern in details and make a suitable treatment plan for you. However, getting tested again at 3 months after exposure is still recommended, just to be sure. Do we or don't we have to come back for another test after the 28 days DUO test? Is the result of the 28 days DUO test conclusive and fully reliable? If payment for your response is 2. 7% accuracy. If the test is negative at Learn about HIV testing and test interpretation: What testing types are available? How accurate are these tests? When and should you get tested for HIV? Nov 21, 2020 · What is the window period for modern day hiv 4th generation tests. The test detects both HIV antigens and antibodies with over 99% accuracy, ensuring reliability. According to many health care professionals, this test is actually conclusive at 6 weeks. 8 percent accurate at 28 days. However, this accuracy increases to 99. This test detects the anti-HIV 1, anti-HIV-2 total immunoglobulins, and HIV-1 p24 antigen. The HIV DUO test is extremely accurate at 28 days and is now the test recommended by the UK Guidelines on HIV testing. Feb 26, 2021 · What is the 4th generation HIV test? The fourth generation HIV test, also called an enzyme-linked immunosorbent assay (ELISA) test, is a more complete screening that can identify acute HIV. A few weeks after that i had runny nose, he I have just read on UK medical sites that the HIV Duo Test (4th gen) is now deemed 95% accurate at 28 days and no longer 99. P24 is being produced 7 days after encounter. Here is some information on how reliable the results are. The Better2Know test is a fourth generation test, considered 99. The performance of this test was assessed in a diverse range of testing populations, showing excellent sensitivity of both the antigen and antibody modules for the detection of single- and dual test a 12 week post exposure in conclusive even with FIRST generation hiv test? 2. Feb 2, 2014 · Good morning Dr. CDC • HIV (human immunodeficiency virus) is a virus that attacks the body’s immune system. Jul 8, 2025 · A negative 4th generation duo test at 93 days after exposure is conclusive, and it is extremely unlikely to turn positive at 6 months, even if post-exposure Oct 31, 2023 · While today’s HIV screening tests are fast and accurate, they can be tricky to understand. 8%. Feb 22, 2022 · HIV 4th generation duo antigen/antibody test is considered almost conclusive after one month of exposure. Just to keep your mind calm do another test after 6 weeks, it's conclusive all around world and after that it won't change. Testing at both 83 days and 94 days is well beyond the window period, meaning your negative results are definitive. Equally effective, more convenient p24 antigen test It is a method of early HIV detection in which the p24 antigen or protein present in HIV is detected. Hiep Le answered Specializes in Nephrology and Dialysis Is the rapid HIV P24 Antigen/Antibody Combo or Duo test conclusive at 28 days? CDC HIV Guidelines Part 2 “The 2014 CDC Guidelines” Now what about the latest guidelines concerning HIV Testing? A 4th generation HIV test, which detects both HIV antibodies and p24 antigens, is considered highly accurate. Sep 23, 2023 · How conclusive is the fourth generation duo hiv test done at 13, 28, and 45 days, and the hiv rna pcr viral load done at 13 days, in addition to the hiv rna qualitative pcr done at 17, 28, and 45 days, all negative/ non-reactive? 2 doctors weighed in across 2 answers Dr. These are also known as fourth-generation HIV tests. When can you get a 4th generation HIV test? Currently there no HIV tests that can detect the presence of HIV immediately. The older tests (3rd generation) take from 6 weeks to 12 weeks for most people. Is there any data available pointing to which one is “The duo test is usually almost conclusive by 28 days and for sure by 6 weeks”. A 4th generation test per the CDC is 100% conclusive after 6 weeks. ” Surely you couldn’t argue with the latest, most up-to-date information portals, can you? Jul 8, 2025 · A negative 4th generation HIV duo test at 93 days post-exposure is conclusive for ruling out HIV infection, even if post-exposure prophylaxis (PEP) was taken I have tested negative for HIV on the 33rd, 45th, 66th day all using the 4th Generation Duo test. You are unlikely to be infected with HIV. 9% accuracy after a 90-day incubation period following any potential exposure to the virus. If the test uses blood from a finger prick, it may take up to 90 days to detect an infection. This test is also known as the “rapid HIV combo test,” the “rapid HIV Duo test,” or more correctly, the “rapid Nov 20, 2023 · Fourth-generation antibody/antigen tests offer accurate results fairly soon after a possible exposure to HIV. It increases to 99% at 28 days and 99. You're good to go. 298 Is tri dot 4 generation test ? Aug 9, 2017 · Do I need to believe my HIV (Human Immunodeficiency Virus) 1 RNA (ribonucleic acid) at 31 days and duo test at 52 days to be conclusive? I have seen many doctors saying six weeks duo is conclusive. If you want, you can repeat the 4th generation DUO after completion of 28 days for your satisfaction to rely the results more conclusive and confidently. As antibodies develop, p24 antigen I had a low risk / no risk exposure on April 16. What happens if my HIV test results are negative? If you get an HIV test after a potential HIV exposure and the result is negative, get tested again after the window period. They are laboratory tests that can detect both HIV antibodies and p24 antigen. Is the rapid hiv p24 antigen/antibody combo or duo test conclusive at 28 days? A doctor has provided 1 answer A member asked: Wondering if anyone knew If the duo test at 28 days is dependant on the risk? Basically is a higher risk not conclusive at 28 days, and is it only so for a low risk exposure? Thanks Answer Question Read Responses (4) Follow Related Questions 4th Generation 28-Day HIV DUO Test Better2Know’s popular HIV DUO test is available following 28 days of incubation. 8 percent accuracy at 28 days and reaching 99. During the window period, someone can be very infectious but still test HIV negative. If recent high-risk exposure occurred, consulting a healthcare provider for personalized advice Nov 13, 2014 · A further test at 8 weeks post-exposure need only be considered following an event assessed as carrying a high risk of infection. The 4th generation HIV CMIA test is highly accurate and considered conclusive at or after 42 days from exposure. Aug 1, 2021 · This study demonstrates high sensitivity of the Elecsys HIV Duo assay for use in screening for HIV infection as part of antenatal care, sexual health assessment, and assessment of at-risk individuals. many hiv specialists consider this conclusive at 28 days. bmd5 sa5rsm axgp3 euvlmi 6cp deh 3vivz1 g62 rxle m6ev