What causes false positive hepatitis B surface antigen?
If the “HBsAg” was positive, this means that you are either chronically infected with hepatitis B or were recently infected. If only the “anti-HBc” was positive, it is most likely that you either had a “false-positive” test or are immune to hepatitis B infection (had hepatitis B infec- tion sometime in the past).
Can you test positive for hepatitis B and not have it?
This test is not routinely included in blood bank screenings. A positive anti-HBs (or HBsAb) test result means you are “immune” and protected against the hepatitis B virus and cannot be infected. You are not infected and cannot spread hepatitis B to others.
Can a Hep B test be wrong?
the result could be a false positive. But you won’t know why your test result is positive without further evaluation. So it is very important that you see your doctor for additional hepatitis B testing.
How accurate is HBsAg test?
In those who were younger than 2 years, the diagnostic accuracy of the HBsAg test card was 100%. Then, 1272 samples were tested for anti-HBs rapid test card. The sensitivity was 91.8% and the specificity was 96.5%.
How common is a false positive hepatitis B?
The administration of HBV and HBsAg test was performed simultaneously. The lab reported three cases of HBsAg positivity, a false positive result of 2.56%.
How common are false positive hep B tests?
How long can hepatitis B go undetected?
A chronic hepatitis B infection can go undetected for years – even decades in many cases. The longer a hepatitis B infection is left untreated, the more susceptible you are to developing severe scarring of the liver (cirrhosis) and liver cancer.
Can rapid test detect hepatitis B?
The test is designed to rapidly and accurately detect both the HBV surface antigen (HBsAg) and the HBV e antigen (HBeAg). A cohort of 942 subjects was tested. The serum clinical sensitivity of the hepatitis B sAg/eAg test was 99.75 and 96.37% for HBsAg and HBeAg, respectively.