Torch Antibodies Panel, IgG & IgM
Test Mnemonic
TORGMP
CPT Codes
- 86777 - QTY (1)
- 86778 - QTY (1)
- 86762 - QTY (1)
- 86644 - QTY (1)
- 86645 - QTY (1)
- 86695 - QTY (1)
- 86696 - QTY (1)
- 86694 - QTY (1)
- 86762 - QTY (1)
Includes
- Toxoplasmosis IgM and IgG, Ab
- Rubella IgG Antibody
- Rubella IgM Antibody
- CMV, IgG
- CMV, IgM
- Herpes Simplex Type 1 and 2 IgG Antibodies
- Herpes Simplex IgM, Abs
Performing Laboratory
ARUP
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 3 mL | Serum | SST (Gold) | Frozen | THIS TEST REQUIRES MULTIPLE SPECIMEN TUBES | |
| 1 mL | Serum | SST (Gold) | Refrigerated | Separate serum from cells ASAP or within 2 hours of collection and transfer into standard aliquot tube. For Rubella IgM testing, parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of acute specimens. Label specimens plainly as 'acute' or 'convalescent.' |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 3.5 mL | Total minimum volume is 3.5 mL split between 2 aliquot tubes (3 mL for frozen specimen, 0.5 mL for refrigerated specimen). |
Stability
| Environmental Condition | Description |
|---|---|
| Frozen | After separation from cells: 14 days |
| Refrigerated | After separation from cells: 48 hours; Note: For Rubella IgM, 2 weeks |
| Ambient | After separation from cells: 8 hours |
Days Performed
Refer to individual components
Turnaround Time
Refer to individual components
Methodology
| Name | Description |
|---|---|
| Chemiluminescence Immunoassay (CLIA) | |
| Chemiluminescent Microparticle Immunoassay (CMIA) | |
| Enzyme Immunoassay (EIA) | |
| Multiplex | |
| Semi-Quantitative Chemiluminescent Immunoassay |
Reference Range
Special Info
Grossly hemolyzed, icteric, lipemic and heat-inactivated samples are unacceptable. Samples containing particulate matter or exhibiting obvious microbial contamination will be rejected.
Clinical Info
For toxoplasmosis IgM and IgG, Ab: Equivocal results should have a new sample collected and tested 3 weeks later. Rubella IgG Ab: If exposure to Rubella is suspected and a negative result is obtained, a second specimen should be collected and tested 1-2 weeks later. Equivocal results should have a second sample collected and tested. Rubella IgM Ab: Parallel testing is preferred and convalescent specimens MUST be received within 30 days from receipt of acute specimens. Herpes Simplex Type 1 and 2 IgG Antibodies: Equivocal results should be followed up by obtaining a new sample for re-testing. Herpes Simplex IgM, Abs: A negative result does not rule out a primary or reactivated infection with HSV1 or HSV2 because the sample may have been obtained too early in the course of infection. If a primary infection is suspected, obtain a new sample 1-2 weeks later. Patients with equivocal results should have a new sample collected and tested 1-3 weeks later.