Laboratory Services

Mumps Immune Status

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Updated Test Information:

Test Description
Mumps Immune Status

MMR Titer-Mumps, Mumps IgG, UOW1247

Test ID
General Information

The detection of Mumps IgG class antibodies in human sera by the FDA approved LIAISON® Mumps IgG Assay. Results are reported as either:

  • Evidence of past infection (or immunization) with Mumps virus.

  • No Evidence of past infection (or immunization) with Mumps virus.

NOTE: Immune status testing is intended to monitor vaccination. If an acute mumps infection is suspected, please contact the King Co. Public Health Epidemiologist at (206) 296-4774 to determine if PCR or mumps antibody IgM testing is appropriate. Testing is performed at the Washington State Public Health Lab.

Container Type

 5mL blood in Gold Top serum separator tube (SST).

Also acceptable: 5 mL blood in Orange RST, Red Top tube or the following anticoagulants EDTA, heparin or citrate.

Specimen Type

Blood, only serum may be used.

Specimen Requirements

1 mL serum

Specimen Collection / Processing Instructions

Blood: Harvest serum from whole blood within 24 hours of collection. Serum may be stored at 2-8°C (ice pack) for up to 7 days. Freeze at -20°C or colder for long term storage. Do not freeze/thaw.

Outside Laboratories: Ship samples on Dry Ice, do not freeze/thaw. If freezer and/or dry ice is not available, ship immediately at 2-8°C (ice pack), shipment time must not to exceed 7 days from collection. Samples stored at 2-8°C greater than 7 days old will be rejected.

Minimum Sample Volume

0.3 mL serum


2-8°C for up to 7 days

Unacceptable Specimen Conditions

Unacceptable samples: Cord blood, neonatal specimens, cadaver specimens, heat-inactivated specimens, or body fluids such as saliva, urine, amniotic fluid, pleural fluid or plasma. Specimens with obvious microbial contamination, lipemic or are grossly hemolyzed.

Department (code)

Clinical Virology (CVIR)


The qualitative determination of specific IgG to mumps virus is an indirect chemiluminescence immunoassay (CLIA).

Testing Schedule

Monday - Friday

Test Includes

Code                        Name
SPDES1                 Mumps Immune Status Specimen
MPISR                   Mumps Immune Status Result
IN13                       Mumps Immune Status Interp

CPT Code(s)


STAT Orderable (Y/N)


Performing Lab


LOINC Code(s)