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Mumps Ab, IgG
Message5/19/26: New Methodology
Test Code
MUMPG
CPT Codes
86735
Preferred Specimen
GOLD (SST)
Other Acceptable Specimens
Red
Only Serum is acceptable
Only Serum is acceptable
Instructions
- Collect 1 gold topped, serum separator tube.
- Allow tubes to clot adequately before centrifugation.
Setup Schedule
24x7
Reference Range
Mumps IgG AB:
CUTOFF POINTS for Mumps Ab, IgG
8.9 or less AU/mL ....... Negative
9.0 - 10.9 AU/mL ....... Equivocal
11.0 AU/mL or greater .. Positive
Negative result: Indicates that the patient has not been infected and is susceptible to mumps.
Equivocal result: Recommend retesting patient in one to two weeks.
Positive result: Indicates past exposure to mumps virus or previous vaccination.
CUTOFF POINTS for Mumps Ab, IgG
8.9 or less AU/mL ....... Negative
9.0 - 10.9 AU/mL ....... Equivocal
11.0 AU/mL or greater .. Positive
Negative result: Indicates that the patient has not been infected and is susceptible to mumps.
Equivocal result: Recommend retesting patient in one to two weeks.
Positive result: Indicates past exposure to mumps virus or previous vaccination.
Clinical Significance
Mumps which is a viral illness caused by a member of the paramyxovirus family. It is transmitted by respiratory droplets and has an incubation period of 14-25 days after which time prodromal symptoms occur and last anywhere from three to five days. After the prodromes, the symptoms of the viral infection depend on which organ is affected but most common presentation is a parotitis, which occurs in 30-40% of patients. Other sites of infection are reported to occur in the testes, pancreas, eyes, ovaries, central nervous system, joints, and kidneys. A patient is considered infectious from about three days before the onset of symptoms and up to four days after the start of active parotitis. Up to 20% of infected persons can be asymptomatic. Prior to vaccine availability, mumps was a common disease of childhood and about 50% of children contracted mumps. Mumps vaccination programs (part of measles, mumps, rubella, varicella [MMRV] vaccination) have had a marked effect on the incidence of the disease and the complications associated with it. With the decreased incidence of mumps, many physicians no longer readily recognize the symptoms. In addition, typical clinical signs and symptoms may be absent in underimmunized or immunocompromised individuals; approximately 20 to 30% of infections are sub-clinical. Parotitis, the hallmark of clinical diagnosis, is also now known to be present in other viral and non-viral diseases or conditions. Mumps-like symptoms in acutely ill children who previously received the MMRV vaccine have been associated with Epstein-Barr virus, human parainfluenza viruses (HPIV), adenovirus, and human herpesvirus type 6. Therefore laboratory confirmation of mumps virus infection is now more important in establishing the diagnosis.
Performing Laboratory
CRMC Microbiology/Immunology Laboratory
5/19/2026: CRMC Chemistry
