ARUP's Laboratory Test Directory

Mumps Virus Antibody IgM, CSF : 0054443

Mnemonic: MUMPSMCSF

Methodology: Semi-Quantitative Enzyme-Linked Immunosorbent Assay
Performed: Mon-Fri
Reported: 1-5 days
Specimen Required: Collect: CSF.

Specimen Preparation: Transfer 0.5 mL CSF to an ARUP Standard Transport Tube. (Min: 0.2 mL)

Storage/Transport Temperature: Refrigerated. Also acceptable: Frozen.

Unacceptable Conditions: Specimen types other than CSF. Contaminated or heat-inactivated specimens.

Stability (collection to initiation of testing): Ambient: 8 hours; Refrigerated: 2 weeks; Frozen: 1 year
Reference Interval:
0.79 IV or less: Negative - No significant level of detectable IgM antibody to Mumps virus.
0.80-1.20 IV: Equivocal - Borderline levels of IgM antibody to Mumps virus. Repeat testing in 10-14 days may be helpful.
1.21 IV or greater: Positive - Presence of IgM antibody to Mumps virus detected, which may indicate a current or recent infection. However, low levels of IgM antibody may occasionally persist for more than 12 months post-infection or immunization.
Interpretive Data: The detection of antibodies to mumps in CSF may indicate central nervous system infection. However, consideration must be given to possible contamination by blood or transfer of serum antibodies across the blood-brain barrier.

See Compliance Statement B: www.aruplab.com/CS
CPT Code(s): 86735
Cross References: MMR (Mumps Virus Antibody IgM, CSF), Parotitis (Mumps Virus Antibody IgM, CSF)