RUBELLA IGM ANTIBODY

LAB865

 

Collect

Serum separator tube.

Specimen Preparation

Allow specimen to clot completely at room temperature. Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.5 mL) Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of acute specimens. Mark specimens plainly as "acute" or "convalescent."

Unacceptable Conditions

Plasma or urine. Contaminated, heat-inactivated, or hemolyzed specimens.

Storage/Transport Temperature

Refrigerated.

Stability (from collection to initiation)

After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)

Performed

Sun-Sat

Methodology

Semi-Quantitative Chemiluminescent Immunoassay

Reported

Within 24 hours

Synonyms

  • LAB865

Ordering Recommendations

Not recommended as a stand-alone test. Rubella Antibodies, IgG and IgM (0050552) is preferred.

Reference Interval

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.

Interpretive Data

Testing immediately post-exposure is of no value without a later convalescent specimen. While the presence of IgM antibodies suggests current or recent infection, low levels of IgM antibodies may occasionally persist for more than 12 months post-infection or immunization.

The magnitude of the measured result is not indicative of the amount of antibody present.

CPT Codes

86762
Collection

LAB865

 

Collect

Serum separator tube.

Specimen Preparation

Allow specimen to clot completely at room temperature. Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.5 mL) Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of acute specimens. Mark specimens plainly as "acute" or "convalescent."

Unacceptable Conditions

Plasma or urine. Contaminated, heat-inactivated, or hemolyzed specimens.

Storage/Transport Temperature

Refrigerated.

Stability (from collection to initiation)

After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
Ordering

Performed

Sun-Sat

Methodology

Semi-Quantitative Chemiluminescent Immunoassay

Reported

Within 24 hours

Synonyms

  • LAB865

Ordering Recommendations

Not recommended as a stand-alone test. Rubella Antibodies, IgG and IgM (0050552) is preferred.
Result Interpretation

Reference Interval

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.

Interpretive Data

Testing immediately post-exposure is of no value without a later convalescent specimen. While the presence of IgM antibodies suggests current or recent infection, low levels of IgM antibodies may occasionally persist for more than 12 months post-infection or immunization.

The magnitude of the measured result is not indicative of the amount of antibody present.

Administrative

CPT Codes

86762

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