ARUP's Laboratory Test Directory

TORCH Antibodies, IgM : 0050665

Mnemonic: TORCH M

Methodology: Refer to individual components
Performed: Sun-Sat
Reported: 1-2 days
Specimen Required: Collect: One 4 mL serum separator tube.

Storage/Transport Temperature: 2 mL serum at 2-8°C. (Min: 1 mL) Submit specimen in an ARUP Standard Transport Tube.

Remarks: Acute and convalescent specimens must be labeled as such; parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. Please mark specimen plainly as "acute" or "convalescent."

Unacceptable Conditions: Refer to individual components.

Stability (collection to initiation of testing): After separation from cells: Ambient: 2 days; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
Reference Interval:
 
Test Number Components Reference Interval
0050553Cytomegalovirus Antibody, IgM 0.89 IV or less: Negative - No significant level of detectable CMV IgM antibody.
0.90-1.09 IV: Equivocal - Repeat testing in 10-14 days may be helpful.
1.10 IV or greater: Positive - 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: Negative - No significant level of detectable HSV IgM antibody.
0.90-1.09 IV: Equivocal - Questionable presence of IgM antibodies.  Repeat testing in 10-14 days may be helpful.
1.10 IV or greater: Positive - 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 0.89 IV or less: Negative - No significant level of detectable rubella IgM antibody.
0.90-1.09 IV: Equivocal - Repeat testing in 10-14 days may be helpful.
1.10 IV or greater: Positive - IgM antibody to rubella detected, which may indicate a current or recent infection or immunization.
0050557Toxoplasma gondii Antibody, IgM 0.89 IV or less: Negative - No clinically significant level of Toxoplasma gondii IgM antibody detected.
0.90-1.09 IV: Equivocal - Repeat testing in 10-14 days may be helpful.
1.10 IV or greater: Positive - 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.
 
CPT Code(s): 86645 CMV IgM; 86694 HSV IgM; 86762 Rubella IgM; 86778 Toxoplasma IgM
 
 

 

 

 
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