IgM
Abbrev Code: | IGM | ||
Order Code: | LAB72 | Order Name: | IGM |
Synonyms: | Immunoglobulin M; Gamma Globulin | ||
Methodology: | Immunoturbidimetry | ||
CPT Codes: | 82784 x1 | ||
Turnaround Time: | Performed Mon-Fri; results are reported within 1 day. |
Collection Instructions
Specimen: | Blood |
Optimal Volume: | 1 mL |
Minimum\Peds Volume: | 0.6 mL |
Container: | Red or gold (gel) Alternate Containers: Green (lithium heparin, gel), Green (sodium heparin, no gel), Purple (EDTA), Red (no gel) |
Causes for Rejection: | Grossly hemolyzed and highly lipemic samples. Samples not separated from cells within 2 hours of collection. |
Processing and Shipping
Specimen Processing: | Within 2 hours of collection, centrifuge and aliquot 0.5 mL, 0.2 mL minimum. Store in refrigerator. |
Shipping Instructions: | Ship at refrigerated temperature. |
Stability: | After separation from cells: 7 days refrigerated; indefinitely frozen. |
Test Performed at or Referral Lab | UM Specialty Core/Prot/Endo (Optilite C) |
Interpretive
Reference Range: |
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Use: | Evaluate humoral immunity, establish diagnosis and monitor therapy in macroglobulinemia of Waldenstrom and multiple myeloma. Screen cord or neonatal serum for infections acquired in utero. |
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