Cryoglobulin, Qualitative with Reflex to IFE Typing and Quantitative IgA, IgG, and IgM
Aids in evaluation of patients with vasculitis, macroglobulinemia, or multiple myeloma in whom symptoms occur with exposure to cold.
Qualitative Cold Precipitation/Qualitative Immunofixation Electrophoresis/Quantitative Nephelometry
Fasting specimen required.
Whole blood drawn in a pre-warmed (37°C) syringe. Specimen may be drawn directly into a pre-warmed plain red.
Maintain whole blood at 37°C until clotting is complete; do not refrigerate or freeze at any time. Immediately after blood has been obtained, transfer specimen to a pre-warmed plain red (if not used for collection). Separate serum from cells using a 37°C centrifuge, if possible. Transfer 3 mL serum to an ARUP Standard Transport Tube. (Min: 3 mL)
Room temperature. Also acceptable: Refrigerated.
Plasma. Serum separator tubes. Grossly hemolyzed or lipemic specimens.
Proper collection and transport of specimen is critical to the outcome of the test. Quantities less than 3 mL may affect the sensitivity of the test.
After separation from cells: Ambient: 1 week; Refrigerated: 1 week; Frozen: Unacceptable
Effective November 16, 2015
|0050185||Cryoglobulin, Qualitative||Negative at 72 hours.|
|2012572||Immunofixation Electrophoresis, Serum||Normal IFE|
|Immunoglobulin A, Cryoprecipitate||0 mg/dL|
|Immunoglobulin G, Cryoprecipitate||0 mg/dL|
|Immunoglobulin M, Cryoprecipitate||0 mg/dL|
Laboratory Developed Test (LDT)
If Cryoglobulin Qualitative is positive, then Immunofixation Electrophoresis Typing and Quantitative IgA, IgG and IgM will be added. Additional charges apply.
82595; if reflexed, add 82784 x3; 86334
|Component Test Code*||Component Chart Name||LOINC|
- Cryoglobulins reflex test to IFE
- Quantitative cryoglobulins