Torch Antibodies, IgM


Abbrev Code:TORABM   
Order Code:LAB3780Order Name:Torch Antibodies, IgM
Synonyms:Newborn, TORCH Panel
Methodology:Enzyme-linked immunosorbent assay/chemiluminescent immunoassay
CPT Codes: 86778 x1, 86762 x1, 86645 x1, 86694 x1
Turnaround Time:Specimens are sent to reference laboratory Mon-Fri; results are reported within 1-2 days.
Special Instructions:Parallel testing is preferred. Label samples as acute or convalescent. Convalescent specimens must be received within 30 days from receipt of the acute specimens.


Collection Instructions

Specimen:Blood
Optimal Volume:4 mL
Minimum\Peds Volume:2.2 mL
Container:Red or gold (gel)
Alternate Containers: Red (no gel)
Causes for Rejection:Grossly hemolyzed, lipemic, icteric.


Processing and Shipping

Specimen Processing:Allow specimen to clot completely at room temperature. Separate serum from cells within 2 hours of collection. Centrifuge and aliquot 2 mL, 1 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Stability:48 hours at room temperature; 2 weeks refrigerated; 1 year frozen.
Test Performed at or Referral Lab Lab Sendouts  (ARUP)
Referral Lab number:50665


Interpretive

Reference Range:
 
Cytomegalovirus 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 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.
 
Herpes Simplex Virus I & II Antibodies, IgM
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 current or recent infection or reactivation. However, low levels of IgM antibodies may occasionally persist for more than 12 months post-infection.
 
Rubella 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.
 
Toxoplasma 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.
 


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