How accurate is HBsAg test?
The diagnostic accuracy was 98.4% (Table 1). The area under ROC for HBsAg rapid test was 0.99. By analyzing the ROC, the sensitivity and specificity may achieve 99.4% and 99%, respectively, when HBsAg is 11.76 IU/mL.
What is Advia Centaur?
The ADVIA Centaur CP System is an immunoassay test instrument for mid-volume labs. Its broad menu lets you both expand and consolidate – by bringing a wide range of assays to one workstation, eliminating redundant systems. The ADVIA Centaur CP System is easy to operate, increases efficiency and streamlines workflow.
What is normal range of HBsAg?
For example, a hepatitis B surface antigen (HBsAg) level of less than 1 s/c is considered negative, while a level of more than 5 s/c is considered positive. Any value between 1 and 5 s/c is indeterminate and should be repeated.
What is HBsAg II?
Immunoassay for the qualitative determination of hepatitis B surface antigen (HBsAg) Hepatitis B is a potentially life threatening liver infection caused by the hepatitis B virus (HBV). It is transmitted through contact with the blood or other body fluids of an infected person.
What is Immulite?
The IMMULITE 2000 XPi system is a continuous random access immunoassay analyzer with a maximum throughput of 200 tests per hour. This design increases workflow and enhances productivity for medium- to high-volume immunoassay laboratories by incorporating specialty and allergy testing into one platform.
What is an immunoassay analyzer?
Immunoassay analyzers are used to identify and detect the concentration of specific substances in a sample, usually using an antibody as a reagent.
Can HBsAg become negative?
Patients who become HBsAg negative and develop antibody to HBsAg (anti-HBs) are diagnosed as having resolved hepatitis B [3,4]. This is an uncommon phenomenon in chronic HBV infection. During stage HBV DNA may still be detectable by PCR in serum and more often in the liver.
What is HBsAg Quant?
The HBsAg quantitative assay records the amount of hepatitis B surface antigen in a patient’s blood. This, in combination with hepatitis B virus DNA (HBV DNA) testing, enables physicians to monitor and evaluate a patient’s response to peginterferon alfa-2a therapy, and to stop treatment after 24 weeks if indicated.
What is the Advia Centaur HBsAg assay?
The ADVIA Centaur HBsAg assay is a magnetic particle chemiluminometric immunoassay used to measure the amount of hepatitis B surface antigen in human serum and plasma. Hepatitis B virus (HBV) is endemic throughout the world and is the major cause of liver disease.
What are the indications for the AD via Centaur HBsAg confirmatory ready pack?
AD VIA Centaur® HBsAg Confirmatory Ready Pack Indications for use: The AD VIA Centaur® HBsAg Conftrmatory assay is an in vitro diagnostic immunoassay for the qualitative confirmation of the presence of hepatitis B surface antigen (HBsAg) in human serum or plasma (EDTA, lithium or sodium heparin,) using the AD VIA Centaur® system.
What is the HBsAg confirmatory assay?
Intended Use The ADVIA Centaur HBsAg Confirmatory Assay is an in vitro diagnostic immunoassay for the qualitative confirmation of the presence of hepatitis B surface antigen (HBsAg) in human serum and plasma (potassium EDTA, lithium or sodium heparin) using the ADVIA Centaur system.
How accurate is the Advia Centaur test?
All of the ADVIA Centaur assays showed a very good diagnostic sensitivity on these populations with 100% for the ADVIA Centaur HBsAg Assay, 99.0% for the ADVIA Centaur Anti-HBs Assay, 98.53% for the ADVIA Centaur HBc IgM Assay and 100% for the ADVIA Centaur HBc Total Assay.