Abbrev Code:MACRO   
Order Code:LAB765Order Name:Macroglobulins
Synonyms:Viscosity, Serum
Methodology:Viscosity relative to water
CPT Codes: 85810 x1
Test Includes:serum viscosity index
Turnaround Time:Performed Mon-Fri; results are reported the same day.

Collection Instructions

Optimal Volume:5 mL
Minimum\Peds Volume:2.4 mL
Container:Red or gold (gel)
Alternate Containers: Red (no gel)

Processing and Shipping

Specimen Processing:Centrifuge and aliquot 2.2 mL, 1.1 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at room temperature.
Test Performed at or Referral Lab UM Specialty Core/Prot/Endo (Sebia B) 


Reference Range:Adult: Viscosity Index: 1.4-1.8.
Use:Evaluation of hyperviscosity syndrome most frequent with IgM monoclonal gammopathy (Waldenstrom's macroglobulinemia); next with IgA myeloma.

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