An improved multi-layered diagnostic sanitary test strip for receiving a heterogenous fluid, such as whole blood, to test for presence and/or amount of a suspected analyte in the fluid by facilitating a color change in the strip corresponding to the amount of the analyte in the fluid, wherein the test...http://www.google.ca/patents/US7560288?utm_source=gb-gplus-sharePatent US7560288 - Diagnostic sanitary test strip
