Hyperviscosity syndrome: causes, symptoms and clinical management
15 Oct 2026This application note explains hyperviscosity syndrome (HVS), a serious medical condition that occurs when blood becomes abnormally viscous and cannot flow freely through blood vessels. Learn about the underlying causes of HVS, including excess red blood cells, white blood cells, and monoclonal proteins associated with conditions such as Waldenström’s macroglobulinemia and multiple myeloma. Explore the role of plasma viscosity (PV) and serum viscosity (SV) testing in diagnosis, common clinical symptoms and treatment approaches including plasmapheresis, supportive care, and management of the underlying disease.
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Resource type: Application note
Page count: 1
Read time: 3 mins
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