One 7.5 mL serum separator tube (SST). Also acceptable: One 5 mL red top tube.
Allow to clot, centrifuge and immediately separate serum from cells. Refrigerate. Freeze at -20° C if specimen cannot be assayed within 48 hours. Allow no more than one freeze/thaw cycle. If multiple tests are ordered, send separate specimen for this test.
1 mL serum.
200 µL serum.
Refrigerated or frozen on dry ice.
Severely lipemic or hemolyzed, icteric, contaminated or heat-inactivated specimen; specimen frozen and thawed more than once; refrigerated specimen received more than 48 hours after collection.
Negative: No significant level of detectable IgG mumps antibody, presumed non-immune to mumps infection.
Equivocal: Repeat testing in 10-14 days may be helpful.
>or = 1.1 IV
Positive: IgG antibody to mumps detected, which may indicate a current or previous exposure or immunization to mumps. Positive IgG antibody levels in the absence of current clinical symptoms may indicate immunity.