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A patient serum is added to a radiolabeled peparation for RIA testing. If testing for an...

A patient serum is added to a radiolabeled peparation for RIA testing. If testing for an antibody in the patient, then the preparation will contain __________________________. If testing for an antigen in the patient, then the preparation will contain ___________________________________. Group of answer choices

unlabeled antigen, unlabeled antibody

labeled antigen, labeled antibody

unlabeled antibody, unlabeled antigen

labeled antibody, labeled antigen

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A patient serum is added to a radiolabeled peparation for RIA testing. If testing for an antibody in the patient, then the preparation will contain __________________________. If testing for an antigen in the patient, then the preparation will contain ___________________________________. Group of answer choices

a) unlabeled antigen, unlabeled antibody

b) labeled antigen, labeled antibody

c) unlabeled antibody, unlabeled antigen

d) labeled antibody, labeled antigen.

explanation - In RIA (Radio Immuno Assay) known quantity of radiolabeled antigen or antibody is added into the well and this is mixed with either antibody or antigen. after that patient sample containing antigen or antibody is added to the well. the unlabeled antigen or antibody of patient competes with the radiolabeled counterpart. the released radiolabeled antigen or antibody is detected and based on that antigen or antibody titer of patient is calculated.

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