TORCH Antibodies, IgM
0050665
Ordering Recommendation
 
Mnemonic
TORCH M
Methodology
Semi-Quantitative Chemiluminescent Immunoassay/Semi-Quantitative Enzyme-Linked Immunosorbent Assay
Performed
Sun-Sat
Reported
1-2 days  
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
Patient Preparation
  
Collect
Serum separator tube. Also acceptable: Serum from umbilical cord blood.  
Specimen Preparation
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
0050553Cytomegalovirus Antibody, IgM  
 
29.9 AU/mL or less: Not Detected.
30.0-​34.9 AU/mL: Indeterminate -​ Repeat testing in 10-​14 days may be helpful.
35.0 AU/mL or greater: Detected -​ IgM antibody to CMV detected, which may indicate a current or recent infection.  However, low levels of IgM antibodies may occasionally persist for more than 12 months post-​infection.
0050641Herpes Simplex Virus Type 1 and/or 2 Antibodies, IgM by ELISA  
 
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 -​ IgM antibody to HSV detected, which may indicate a current or recent infection. However, low levels of IgM antibodies may occasionally persist for more than 12 months post-​infection.
0050551Rubella Antibody, IgM  
 
19.9 AU/mL or less: Not Detected.
20.0 -​ 24.9 AU/mL: Indeterminate -​ Repeat testing in 10-​14 days may be helpful.
25.0 AU/mL or greater: Detected -​ IgM antibody to rubella detected, which may indicate a current or recent infection or immunization.
0050557Toxoplasma gondii Antibody, IgM  
 
7.9 AU/mL or less: Not Detected.
8.0-​9.9 AU/mL: Indeterminate -​ Repeat testing in 10-​14 days may be helpful.
10.0 AU/mL or greater: Detected -​ Significant level of Toxoplasma gondii IgM antibody detected and may indicate a current or recent infection. However, low levels of IgM antibodies may occasionally persist for more than 12 months post-​infection.
 
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)
86645; 86694; 86762; 86778
Components
Component Test Code*Component Chart Name
0050551Rubella Antibody IgM
0050553CMV Antibody IgM
0050557Toxoplasma gondii Ab, IgM
0050641HSV 1 and/or 2 Abs, IgM by ELISA
* 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
  • Cytomegalic Inclusion Disease (CMID)
  • Cytomegalovirus (CMV)
  • Herpes Simplex Virus (HSV)
  • TORCH
  • TORCH IgM
  • TORCH Profile IgM
  • Toxoplasma gondii (T. gondii)
  • Toxoplasmosis