System and Method For Detecting Multiple Molecules in One Assay

A rapid diagnostic system that delivers a panel of serologic assay results using a small amount of blood, serum, or plasma is described. The system includes a disposable cartridge, including an integral lens portion coupled to a planar waveguide, and a reader instrument, based on planar waveguide imaging technology. The cartridge incorporates a microarray of recombinant antigens and antibody controls in a fluidic channel, providing multiple parallel fluorescence assay results for a single sample.