card test

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card test

a test in which the reagent or antigen, usually dyed, is impregnated into absorbent paper. The subject specimen of urine, blood, plasma or serum is placed on the impregnated card and a color or similarly easily seen change is recorded.

brucellosis card test
the reagent is dyed antigen consisting of a whole-cell suspension of Brucella abortus strain 1119-3. The antibody whose presence is under test is in plasma collected from the subject animals and extracted rapidly from the blood by the use of a special clumping agent. Only a positive or negative result is recorded.