Torch Antibodies, IgM
Test Mnemonic
TORCHM
CPT Codes
- 86762 - QTY (1)
- 86778 - QTY (1)
- 86645 - QTY (1)
Aliases
- CMV Antibody, IgM
- Cytomegalovirus Antibody, IgM
- Rubella Antibody, IgM
- Toxoplasma gondii Antibody, IgM
Includes
- Rubella IgM
- CMV IgM
- Toxoplasma IgM
Performing Laboratory
ARUP
FDA Category
Laboratory Developed Test
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 2 mL | Serum | SST (Gold) | Refrigerated | Allow specimen to clot completely at room temperature. Separate serum from cells ASAP or within 2 hours of collection and transfer to standard aliquot tube. Parallel testing is preferred, and convalescent specimens must be received within 30 days from receipt of the acute specimens. Label specimens plainly as 'acute' or 'convalescent.' |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Frozen | After separation from cells: 1 year (Avoid repeated freeze/thaw cycles) |
| Ambient | After separation from cells: 48 hours |
| Refrigerated | After separation from cells: 2 weeks |
Days Performed
Sun - Sat
Turnaround Time
2 - 3 days
Methodology
| Name | Description |
|---|---|
| Semi-Quantitative Chemiluminescent Immunoassay |
Reference Range
Special Info
Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. This test is New York DOH approved.
Clinical Info
This test should not be used for blood donor screening, associated reentry protocols, or for screening human cellular and tissue-based products (HCT/P).