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Test Code TORCHG or LAB2348 Torch Panel IgG, Serum

Profile Information

Test ID Reporting Name Available Separately? Always Performed?
TOXOG Toxoplasma IgG Y Y
RUBGQN Rubella IgG, Quantitative Y Y
CMVGG CMV IgG Y Y
HERP1G Herpes 1 IgG Y Y
HERP2G Herpes 2 IgG Y Y

 

Specimen Requirements

Container Type:

Optimal: Gold

Acceptable: Red 

 
Optimal Collection Volume: 

4.5mL; full tube
Minimum Volume:

2 mL
Collection Instructions:

Gently invert the sample 5-6 times after collection.
Specimen Transport:

Refrigerate
Processing Instructions: 

1. Allow the specimen to clot for 30 minutes.

2. Centrifuge specimen within 2 hours of collection.

3. After centrifugation, specimen tubes without a gel barrier should have the serum aliquoted to a false bottom container.

4. Keep serum refrigerated until testing can be performed.

Specimen Stability

Specimen Type Temperature Time
Serum Refrigerated 7 days
Room Temperature 8 hours

Specimen Rejection Criteria

Hemolysis Mild OK; Moderate OK; Gross Reject
Lipemia Mild OK; Moderate OK; Gross Reject
Icterus Mild OK; Moderate OK; Gross Reject
Other Quantity not sufficient

Useful For

Determining immune status of individuals to the rubella virus following vaccination or prior exposure

 

Indicating past or recent infection with Toxoplasma gondii, cytomegalovirus, or herpes simplex virus (HSV)

 

Distinguishing between infection caused by HSV types 1 and 2, especially in patients with subclinical or unrecognized HSV infection

Methodology

Bio-Rad BioPlex 2200: Multiplex flow immunoassay

Reference Ranges

Test ID Reference Range and Reporting Units
TOXOG < 10 IU/mL: Negative 10-11 IU/mL: Equivocal > 11 IU/mL: Positive
RUBGQN < 8 IU//mL: Non-Immune 8-9 IU/mL: Equivocal > 9 IU/mL: Immune
CMVGG < 0.9 AI: Negative 0.9-1.0 AI: Equivocal > 1.0 AI: Positive
HERP1G < 0.8 AI: Negative 0.9-1.0 AI: Equivocal > 1.1 AI: Positive
HERP2G < 0.8 AI: Negative 0.9-1.0 AI: Equivocal > 1.1 AI: Positive

AI = Antibody Index

Day(s) Performed

Monday through Friday

Expected TAT

Same day or 1-2 days

Performing Laboratory

Bronson Laboratory, Chemistry - Kalamazoo

Sample Retention Time

7 days

CPT Code

  • TOXOG: 86777
  • RUBGQN: 86762
  • CMVGG: 86644
  • HERP1G: 86695
  • HERP2G: 86696

LOINC Code

  • TOXOG: 8039-0
  • RUBGQN: 5334-8
  • CMVGG: 13949-3
  • HERP1G: 51916-5
  • HERP2G: 43180-9