CPT/HCPCS
86644, 86645
Order Code
CH377
Turnaround Time
10 days
Test Includes
CMV Ab IgG, CMV Ab IgM
Specimen Requirements
Specimen Source
Serum
Transport Container
(Specimen Container)
(Specimen Container)
Serum Separator Tube (SST/Tiger Top)
Preferred Specimens
Serum
Collection Instructions
(Transport Temperature)
(Transport Temperature)
Transport Refrigerated (cold packs)
Specimen Stability
| Temperature | Period |
|---|---|
| Room temperature | 2 days |
| Refrigerated | |
| Frozen | 30 days |
Reject Criteria
Gross hemolysis
Gross lipemia
Plasma
Cord blood
Special Instructions
Separate serum from cells within 45 minutes of venipuncture.
Test Details
Methodology
Immunoassay
Clinical Significance
Intrauterine or congenital CMV infections occur in 0.5 to 2.2% of all live births. Symptomatic congenital infections usually occur in infants born to non immune mothers who have primary infections during pregnancy. Latency and reactivation of CMV influence the interpretation of serological results. A single positive CMV IgG result is an indication of present or past infection. The presence of CMV IgM suggests a recent CMV exposure but does not differentiate between primary infection and reactivation.
Reference Ranges
CMV Ab (IgM): ≤ 34.9 AU/mL
CMV Ab, IgG: ≤ 0.69 U/mLD
