The Tina-quant lgA Gen.2 is an immunoturbidimetric assay. Anti-lgA antibodies react with antigen in the sample to form an antigen/antibody complex which is measured turbidimetrically.
Calibration failures with Std.E, Sens.E, or Dup.E error due to atypical reaction kinetics and quality control failures have occurred due to contamination of R1 reagent with R3 reagent.
The products were distributed to the following US states: AL, IN, and KY.
https://www.accessdata.fda.gov/scripts/ires/index.cfm?Product=Z-1979-2019