Immunoglobulin M
Also known as: IGM
Use
Immunoglobulin M (IgM) test is used to aid in the diagnosis or monitoring of IgM monoclonal gammopathies and IgM-related immune deficiencies. It is important in assessing immune system function, identifying conditions such as primary immunodeficiency diseases, and managing disorders involving abnormal IgM levels.
Special Instructions
Patient should have serum or plasma separated from cells as soon as possible or within 2 hours of collection. Transfer the specimen to an ARUP Standard Transport Tube for optimal handling. Ensure the specimen is refrigerated during transport. Unacceptable conditions include grossly hemolyzed or lipemic specimens.
Limitations
The test is not suitable for specimens that are grossly hemolyzed or lipemic, as these conditions can interfere with accurate measurements. Samples that are not separated from cells promptly may not provide reliable results. The analysis is carried out using quantitative immunoturbidimetry, so any variations in the standard handling or processing could affect the outcome.
New York Approved
Methodology
Immunoassay
Biomarkers
LOINC Codes
- 2472-9
Result Turnaround Time
1-3 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
1 mL
Minimum Volume
0.5 mL
Container
ARUP Standard Transport Tube
Collection Instructions
Separate serum from cells as soon as possible or within 2 hours of collection.
Storage Instructions
Refrigerated
Causes for Rejection
Grossly hemolyzed or lipemic specimens
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Unacceptable |
| Refrigerated | 14 days |
| Frozen | 6 months |
Other tests from different labs that may be relevant