Patent ID: 8211365

Claim:
An immunodiagnostic test card, said test card comprising: a planar substrate; and a plurality of transparent columns supported by said planar substrate, each of said transparent columns retaining a quantity of one of beads and gel material for trapping formed agglutinates from an agglutination reaction created by a patient sample and at least one reagent, each of said transparent columns further including indicia, said indicia including a set of at least three reaction grade markings disposed in relation to the beads and gel material, wherein each of said plurality of transparent columns is initially filled with said quantity of one of beads and gel material, said markings each being spaced in relation to one another to create a plurality of adjacent visible grading zones to permit the assignment of a reaction grade based on the position of the majority of formed agglutinates in each transparent column, said visible grading zones being used collectively in order to assign a reaction grade based on the position of the majority of formed agglutinates with respect to one of said visible grading zones.