diaDexus Inc. PLAC Test Reagent Kit, Turbidimetric Immunoassay for the Quantitative Determination of Lp-PLA2 in Human Plasma or Serum, liquid ready-to-use two-reagent kit assembled in a kit box, manufactured by diaDexus Inc, South San Francisco, CA 94080, Catalog number 90110 || Turbidimetric Immunoassay for the Quantitative Determination of Lp-PLA2 in Human Plasma or Serum on automated clinical chemistry analyzers, to be used in conjunction with clinical evaluations and patient risk assessment as an aide in predicting risk for coronary heart disease, and ischemic stroke associated with atherosclerosis.