ARUP's Laboratory Test Directory

Mumps Virus Antibody, IgG : 0050390

Mnemonic: MUMPS

Methodology: Semi-Quantitative Chemiluminescent Immunoassay
Performed: Sun-Sat
Reported: Within 24 hours
Specimen Required: Collect: Serum separator tube.

Specimen Preparation: Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.1 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."

Storage/Transport Temperature: Refrigerated.

Unacceptable Conditions: CSF (refer to Mumps Virus Antibody IgG, CSF, ARUP test code 0054442). Body fluids, plasma, urine. Contaminated, heat-inactivated, hemolyzed, lipemic, or severely icteric specimens.

Stability (collection to initiation of testing): After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)

Reference Interval:
Effective August 20, 2012

8.9 AU/mL or less: Negative - No significant level of detectable IgG mumps virus antibody.
9.0-10.9 AU/mL: Equivocal - Repeat testing in 10-14 days may be helpful.
11.0 AU/mL or greater: Positive - IgG antibody to mumps virus detected, which may indicate a current or past exposure/immunization to mumps virus.
Interpretive Data: The best evidence for current infection is a significant change on two appropriately timed specimens, where both tests are done in the same laboratory at the same time.
CPT Code(s): 86735
Cross References: Mumps Antibody (Mumps Virus Antibody, IgG), Parotitis (Mumps Virus Antibody, IgG)