Detects past cytomegalovirus exposure. Not recommended for diagnosis in immunocompromised individuals.
- Patient Preparation
- Serum separator tube.
- Specimen Preparation
- Allow specimen to clot completely at room temperature. Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.5 mL) Acute and convalescent specimens must be labeled as such; parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. Mark specimens plainly as "acute" or "convalescent." Also acceptable: Serum from umbilical cord blood.
- Storage/Transport Temperature
- Unacceptable Conditions
- Plasma or urine. Contaminated, hemolyzed, or heat-inactivated specimens.
- After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
|0.59 U/mL or less:||Not Detected.|
|0.60-0.69 U/mL:||Indeterminate - Repeat testing in 10-14 days may be helpful.|
|0.70 U/mL or greater:||Detected.|
This test should not be used for blood donor screening, associated re-entry protocols, or for screening Human Cell, Tissues and Cellular and Tissue-Based Products (HCT/P).
The best evidence for current infection is a significant change on two appropriately timed specimens, where both tests are done in the same laboratory at the same time.
|Component Test Code*||Component Chart Name||LOINC|
|0050165||CMV Antibody IgG||5124-3|
- CMV Ab, Quantitative
- CMV Antibody
- CMV IgG