Feedback
TORCH Antibodies, IgG
0050772
Ordering Recommendation

Not recommended for diagnosing congenital infections in newborns; tests should be selected individually to target the most likely infectious agents. May be used in pregnant women to assess past exposure or immunization to Toxoplasma, Rubella, CMV, and HSV.

Mnemonic
TORCH IGG
Methodology
Semi-Quantitative Chemiluminescent Immunoassay
Performed
Sun-Sat
Reported
Within 24 hours
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
 
Collect
Serum separator tube. Also acceptable: Serum from umbilical cord blood.  
Specimen Preparation
Allow specimen to clot completely at room temperature. Separate serum from cells ASAP or within 2 hours of collection. Transfer 2 mL serum to an ARUP Standard Transport Tube. (Min: 1 mL) Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. Mark specimens plainly as "acute" or "convalescent."  
Storage/Transport Temperature
Refrigerated.  
Unacceptable Conditions
Refer to individual components.  
Remarks
 
Stability
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)  
Reference Interval
Test Number
Components
Reference Interval
0050165Cytomegalovirus Antibody, IgG
0.59 U/mL or less:Not Detected.
0.60-0.69 U/mL:Indeterminate - Repeat testing in 10-14 days may be helpful.
0.70 U/mL or greater:Detected.

0050293Herpes Simplex Virus Type 1 and/or 2 Antibodies, IgG
0.89 IV or less:Not Detected.
0.90-1.09 IV:Indeterminate - Repeat testing in 10-14 days may be helpful.
1.10 IV or greater:Detected.

0050771Rubella Antibody, IgG
Less than 9 IU/mL:Not Detected.
9-9.9 IU/mL:Indeterminate - Repeat testing in 10-14 days may be helpful.
10 IU/mL or greater:Detected.

0050770Toxoplasma gondii Antibody, IgGEffective March 3, 2014
7.1 IU/mL or less:Not Detected.
7.2-8.7 IU/mL:Indeterminate - Repeat testing in 10-14 days may be helpful.
8.8 IU/mL or greater:Detected.



Interpretive Data
Refer to report.


Note
This test should not be used for blood donor screening, associated re-entry protocols, or for screening Human Cell, Tissues and Cellular and Tissue-Based Products (HCT/P).
CPT Code(s)
86644; 86694; 86762; 86777
Components
Component Test Code*Component Chart NameLOINC
0050165CMV Antibody IgG5124-3
0050286HSV Type 1/2 Combined Ab, IgG27948-9
0050770Toxoplasma gondii Ab, IgG8039-0
0050771Rubella Antibody IgG8014-3
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • CMV Antibody IgG, HSV Type 1/2 Combined Ab, IgG
  • Rubella Antibody IgG
  • Torch panel
  • Toxoplasma gondii Ab, IgG