Torch Antibodies, IgM
Test Mnemonic
TORCHM
CPT Codes
- 86762 - QTY (1)
- 86694 - QTY (1)
- 86778 - QTY (1)
- 86645 - QTY (1)
Includes
- Rubella IgM
- CMV IgM
- Toxoplasma IgM
- HSV Types 1/2 IgM Abs
Performing Laboratory
ARUP
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 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 :2 days |
| Refrigerated | After separation from cells: 2 weeks |
Days Performed
Sun - Sat
Turnaround Time
2 - 3 days
Methodology
| Name | Description |
|---|---|
| Semi Quantitative Enzyme Linked Immunosorbent Assay | |
| Semi-Quantitative Chemiluminescent Immunoassay |
Reference Range
| CMV IgM | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Years | 99 Years | Normal | <= 29.9 Not Detected | AU/mL | Years | 99 Years | Normal | 30.0 - 34.9 Indeterminate | AU/mL | Years | 99 Years | Normal | >= 35.0 Detected | AU/mL |
| HSV Types 1/2 IgM Abs | |||||
| Sex | Age From | Age To | Type | Range | Range Unit |
| Years | 99 Years | Normal | <= 0.89 Not Detected | IV | Years | 99 Years | Normal | 0.90 - 1.09 Indeterminate | IV | Years | 99 Years | Normal | >= 1.10 Detected | IV |
| Rubella IgM | |||||
| Sex | Age From | Age To | Type | Range | Range Unit |
| Years | 99 Years | Normal | <= 19.9 Not Detected | AU/mL | Years | 99 Years | Normal | 20.0 - 24.9 Indeterminate | AU/mL | Years | 99 Years | Normal | >= 25.0 Detected | AU/mL |
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 is not recommended for diagnosing congenital infections in newborns; tests should be selected individually to target the most likely infectious agents.