Report of the Survey Conducted by RCPAQAP on Current Practice for Paraprotein and Serum Free Light Chain Measurement and Reporting: a Need for Harmonisation.

Clinical laboratory testing is vital in the diagnosis, monitoring and prognostication of monoclonal gammopathies. Although the 2012 recommendations for standardised reporting of protein electrophoresis in Australia and New Zealand aimed to harmonise the laboratory practices related to paraprotein testing, the between-laboratory variation still exists. A survey was conducted to assess the between-laboratory variation in certain aspects of laboratory testing related to monoclonal gammopathy.