IMMUNOLOGICAL MEASUREMENT REAGENT FOR USE IN MEASUREMENT OF KL-6

摘要

Disclosed are a measurement reagent and a measurement method both for accurately measuring KL-6, particularly a measurement reagent and a measurement method for accurately measuring KL-6 in a sample that contains a rheumatoid factor and/or a non-specific substance other than the rheumatoid factor. Specifically disclosed is an immunological measurement reagent which comprises a solution containing a rheumatoid factor interference inhibitor and having a pH value of 4.0 to 5.5 and a solution containing an insoluble carrier, wherein an anti-KL-6 antibody is supported on the insoluble carrier. The use of the immunological measurement reagent enables the accurate measurement of KL-6 in a sample that contains a rheumatoid factor and/or a non-specific substance other than the rheumatoid factor.