The invention is directed to a method and device for simultaneously testing a sample for the presence, presence, and/or amounts of one or more of a plurality of selected analytes. The invention includes, in one aspect, device for detecting or quantitating a plurality of different analytes in a liquid sample. Each chamber may include analyte-specific reagent effective to react with a selected analyte that may be present in the sample, and detection means for detecting the signal. Also disclosed are methods utilizing the device.