Department of Laboratory Medicine
University of Washington
Clinical assay interference and limitations
Total Protein S Antigen [PSAGT]
Methodology: Stago STA LIA Total Protein S antigen assay
The presence of rheumatoid factor may lead to an over-estimation of the protein S level.
Reference: Stago STA LIA Total Protein S antigen assay package insert, 25145 Revised September 1997/3
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