Epstein-Barr Virus (EBV) Antibody Profile, Serum
Method Description Describes how the test is performed and provides a method-specific reference
Testing is performed on the BioPlex 2200 System. For the detection of viral capsid antigen (VCA)-IgG antibody, EA-D antibody, and Epstein-Barr nuclear antigen (EBNA) antibody, an aliquot of the patient serum, sample diluent, and bead reagent are combined in a reaction vessel. After washing, antihuman-IgG antibody conjugated to phycoerythrin (PE) is added to the beads and incubated. Another wash step removes excess conjugate, and beads are subsequently resuspended in wash buffer. The bead mixture passes through a detector where the identity of each bead is determined by the bead's dye fluorescence. In addition, the amount of antibody captured by the antigen is measured by the fluorescence of the bound PE.
For the detection of VCA-IgM antibody, the patient sample is combined with diluent containing antihuman IgG and bead reagent. The antihuman IgG is incorporated in the mix because any anti-VCA-specific IgG present may compete with the IgM for binding sites, leading to false-negative VCA-IgM results. After a wash cycle, antihuman-IgM antibody conjugated to PE is added. Detection of anti-VCA-specific IgM is performed as described above for the VCA IgG assay.(Package inserts: BioPlex 2200 System EBV IgG and EBV IgM, Bio-Rad Laboratories Clinical Diagnostics Group, Hercules CA, 2012)
Supplemental Report Indicates whether the report includes an additional document with charts, images or other enriched information
Day(s) and Time(s) Test Performed Outlines the days and times the test is performed. This field reflects the day and time the sample must be in the testing laboratory to begin the testing process and includes any specimen preparation and processing time required before the test is performed. Some tests are listed as continuously performed, which means assays are performed several times during the day.
Monday through Friday; Continuous 9 a.m.-6 p.m., Sunday; 6 a.m.
Analytic Time Defines the amount of time it takes the laboratory to setup and perform the test. This is defined in number of days. The shortest interval of time expressed is "same day/1 day," which means the results may be available the same day that the sample is received in the testing laboratory. One day means results are available 1 day after the sample is received in the laboratory.
Same day/1 day
Maximum Laboratory Time Defines the maximum time from specimen receipt at Mayo Medical Laboratories until the release of the test result
Specimen Retention Time Outlines the length of time after testing that a specimen is kept in the laboratory before it is discarded
Performing Laboratory Location The location of the laboratory that performs the test