p24 Antigen Assays

There are two types of p24 antigen assays in LDMS: direct and culture. The culture version is used with culture harvests created in LDMS Assays. When you attempt to run the culture version, you will only find culture harvests that have already been created. Harvests are automatically created based on the culture's schedule and setup date (e.g. for the day 28 harvest to appear in LDMS, the current date must be 28 days after the culture's setup date).

The direct version, on the other hand, is used to test specimens that are not culture harvests. This means that the aliquots must be assigned to the assay in LDMS Specimen Management or using the Assign Tests tool.

Other than the source, this assay is read the same way, regardless of specimen or instrument.