This correlation may be useful for anticipating the need for repeat plasmapheresis. Serum viscosity and electrophoresis are recommended before and after plasmapheresis in order to correlate viscosity and M-spike with patient symptoms. Serum, plasma or whole blood viscosity measurements can be useful in patients with hyperviscosity syndromes due to multiple myeloma or Waldenstrom's macroglobulinemia. Hyperviscosity syndrome can also occur in multiple myeloma patients.īecause the ability of a monoclonal protein to cause hyperviscosity is affected by its concentration, molecular weight, and aggregation, sera with concentrations of monoclonal IgM greater than 4 g/dL, IgA greater than 5 g/dL, or IgG greater than 6 g/dL should be tested for hyperviscosity. Lab Code SRVISG Epic Ordering Viscosity, Serum Description Viscosity is the property of fluids to resist flow. The most common cause of serum hyperviscosity is the presence of large concentrations of IgM monoclonal proteins, and Waldenstrom macroglobulinemia accounts for 80% to 90% of hyperviscosity cases. Funduscopic examination reveals dilation of retinal veins and flame shaped retinal hemorrhages. Although elevated whole blood viscosity is a better measure of hyperviscosity and more common and clinically important, serum viscosity and plasma viscosity are. Overview Test Id : DEXA Order This Test Dexamethasone, Serum Useful For Confirming the presence of dexamethasone in serum Confirming the cause of secondary adrenal insufficiency This test is not useful as the sole basis for a diagnosis or treatment decisions. Hyperviscosity may be manifested by nasal bleeding, blurred vision, headaches, dizziness, nystagmus, deafness, diplopia, ataxia, paresthesias, or congestive heart failure.
Viscosity is the property of fluids to resist flow.
0 kommentar(er)
