Patent ID: 8808639

Claim:
A test strip card for testing a property of a fluid specimen, said test strip card comprising: a comparison scale that comprises a continuous scale of visual levels; a test strip having (a) a reaction zone which is a part of a reagent pad where a fluid specimen reacts with a reagent, and (b) a zone that is not part of the reaction zone which does not optically change when the fluid specimen reacts with the reagent, the test strip being movably coupled to said test strip card for performing a reaction on the reaction zone on the reagent pad of the test strip; and a window along said comparison scale for viewing (a) the reaction zone of the test strip and (b) at least a portion of the zone of the test strip that is not part of the reaction zone, wherein said test strip is movable with respect to said comparison scale to align said reaction zone with a matching visual level on said comparison scale thereby indicating the property of the specimen.