Patent ID: 7758744

Claim:
A dry reagent diagnostic device for the simultaneous analysis of two or more different analytes in a single application of a single sample of whole blood with a volume under 20 ul, wherein the first analyte is determined by a first detection zone, and a second detection zone, physically separated from the first detection zone, determines the second analyte; a fluid bridge formed by the applied sample connects the two detection zones; said first detection zone and second detection zone having materials and geometry selected to allow simultaneous activation of both zones by a single unseparated whole blood drop; said detection zone materials and geometry being selected so as to return detectable analyte signals in the presence of whole blood; said detection zone materials and geometry being selected as to generate a detectable sample application signal upon initial contact with whole blood; said detectable sample application signal being capable of triggering an automated detection zone reader which is capable of performing subsequent test timing in an automated manner; and at least one of the detection zones produces a detectable change in an optical signal.