Measles IgM Antibody
Test Mnemonic
MEAIGM
CPT Codes
- 86765 - QTY (1)
Aliases
- Rubeola Antibody IgM
Performing Laboratory
ARUP
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL | Serum | SST (Gold) | Refrigerated | Separate serum from cells within 2 hours of collection. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.1 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | After separation from cells: 2 days |
| Refrigerated | After separation from cells: 2 weeks |
| Frozen | After separation from cells: 1 year |
Days Performed
Mon - Fri
Turnaround Time
2 - 6 days
Methodology
| Name | Description |
|---|---|
| Enzyme-Linked Immunosorbent Assay (ELISA) |
Reference Range
| Measles IgM Antibody | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| <=0.79 AU: Negative-No significant level of immunity | 0.80-1.20 AU: Equivocal-Repeat testing may be helpful | >=1.21: Positive-IgM antibodies to measles virus detected |
Special Info
Separate serum from cells within 2 hours of collection.
Clinical Info
A positive result is suggestive of current or recent infection or immunization. However, low levels of IgM antibodies may occasionally persist for greater than 12 months post-infection or immunization. IgM detection is useful in the following situations: 1. Evidence of infection can be obtained from only one acute phase specimen if the IgM results are positive. 2. The IgM test can also be used to differentiate between primary infection and re-exposure.