REAADS Anti-Phosphatidylserine IgA Semi-Quantitative Test Kit (96 Well) - INTENDED USEDetection and semi-quantitation of - CORGENIX MEDICAL CORPORATION

Duns Number:619834542

Device Description: INTENDED USEDetection and semi-quantitation of IgA anti-phosphatidylserine (aPS) antibodie (View more) INTENDED USEDetection and semi-quantitation of IgA anti-phosphatidylserine (aPS) antibodies as an aid for assessingthe risk of thrombosis in individuals with systemic lupus erythematosus (SLE) and lupus-like disorders(anti-phospholipid syndrome). For In Vitro Diagnostic Use.SUMMARY AND EXPLANATION OF THE TESTHigh serum levels of anti-phospholipid antibodies are frequently detected in patients with autoimmune (e.g., SLE) and non-autoimmune diseases, as well as in apparently healthy individuals. These antibodies have been associated with an increased risk for recurrent arterial and venous thrombotic events, thrombocytopenia, and fetal loss. Phosphatidylserine is a more physiologically relevant phospholipid due to its presence in cell membranes of endothelial cells and platelets.PRINCIPLE OF THE TESTThe test is an indirect ELISA. Diluted serum/citrated plasma samples, calibrator sera, and controls are incubated in phosphatidylserine coated microwells. β2-glycoprotein I is provided in the sample diluent. After the removal of unbound serum or plasma proteins by washing, antibodies specific for human IgA, labeled with horseradish peroxidase (HRP), are added forming complexes with the phosphatidylserine bound antibodies. Following another washing step, the bound enzyme-antibody conjugate is assayed by the addition of a single solution containing tetramethylbenzidine (TMB) and hydrogen peroxide (H2O2) as the chromogenic substrate. Color develops in the wells at an intensity proportional to the serum concentration of IgA Antiphosphatidylserine (aPS) antibodies. Results are obtained by reading the O.D. (optical density or absorbance) of each well in a spectrophotometer. IgA calibrator sera are provided, expressed as APS (IgA anti-phosphatidylserine) units. Control and patient results are determined from the calibration curve. Refer to Package Insert. (View less)