Serum viscosity: understanding testing, reference ranges and clinical applications
22 Oct 2026This application note explains the principles and clinical value of serum viscosity (SV) testing as a tool for evaluating abnormal protein concentrations and hyperviscosity-related disorders. Learn how serum viscosity reflects changes in immunoglobulins, paraproteins and other serum proteins associated with conditions such as multiple myeloma, Waldenström’s macroglobulinemia, and hyperviscosity syndrome. Discover how SV testing supports disease monitoring, result interpretation, and clinical decision-making, along with guidance on normal reference ranges, testing conditions, and the relationship between protein concentration and serum flow characteristics.
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Resource type: Application note
Page count: 1
Read time: 3 mins
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