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| 58680:RUBELLA ANTIBODY, IgG, QUANTITATIVE | |||||||||
| Methodology: | Chemiluminescence | ||||||||
| Edit Date: | 1/6/2009 | ||||||||
| Performed: | Daily | ||||||||
| Released: | Same day | ||||||||
| CPT Code: | 86762 | ||||||||
| Specimen Collection Details | |||||||||
| Collection: | One 7.5 mL serum separator tube (SST). Also acceptable: One 5 mL red top tube. | ||||||||
| Handling: | Allow to clot, centrifuge and separate serum from cells immediately. Refrigerate. Freeze if specimen cannot be assayed within 48 hours. | ||||||||
| Standard Volume: | 0.5 mL serum. | ||||||||
| Minimum Volume: | 150 µL serum. | ||||||||
| Transport: | Refrigerated; or if frozen, on dry ice. | ||||||||
| Rejection Criteria: | Gross hemolysis; gross lipemia; heat treated specimen; specimen frozen and thawed more than three times. | ||||||||
| Reference Range: | |||||||||||||||||||
| <10.0 IU/mL Rubella IgG Quantitative Antibody Result Interpretation, Chemiluminescence Method: | |||||||||||||||||||
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<10.0 IU/mL
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Negative: Non-immune, no significant level of detectable Rubella IgG antibody.
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10.0-14.9 IU/mL
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Equivocal: Repeat testing in 10-14 days may be helpful.
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≥ 15.0 IU/mL
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Positive: Immune, IgG antibody to Rubella detected, which may indicate a current or previous
exposure/immunization to Rubella. |
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| IU/mL = International Units/mL
Seroconversion between acute and convalescent sera is considered strong evidence of current or recent infection. The best evidence for infection is a significant change on two appropriately timed specimens, where both tests are done in the same laboratory at the same time. |
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