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| 58160:CYTOMEGALOVIRUS (CMV) ANTIBODY, IgG | |||||||||
| Alias Names: | CMV ANTIBODY, IgG | ||||||||
| Methodology: | Enzyme-Linked Immunosorbent Assay (ELISA) | ||||||||
| Edit Date: | 7/31/2006 | ||||||||
| Performed: | Tuesday | ||||||||
| Released: | Same day | ||||||||
| CPT Code: | 86644 | ||||||||
| 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 at -20 degrees 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. | ||||||||
| Standard Volume: | 0.5 mL serum. | ||||||||
| Minimum Volume: | 200 uL serum. | ||||||||
| Transport: | Refrigerated; or if frozen, on dry ice. | ||||||||
| Rejection Criteria: | Plasma; heat inactivation; gross lipemia or gross hemolysis; bacterial contamination; specimen that has been frozen and thawed more than once; refrigerated specimen received in laboratory more than 48 hours after collection. | ||||||||
| <0.9 IV | |||||||||||||||||||
| Cytomegalovirus (CMV) IgG Antibody Result Interpretation, ELISA Method: | <0.9 IV | 0.9-1.0 IV | >=1.1 IV | IV = Index Value | |||||||||||||||
| Negative | Equivocal | Positive | |||||||||||||||||
| No significant level of detectable CMV IgG antibody. | Repeat testing in 10-14 days may be helpful. | IgG antibody to CMV detected which may indicate current or previous CMV infection. Such individuals are potentially at risk of transmitting CMV infection, but are not necessarily currently contagious. | |||||||||||||||||
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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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