Ordering Recommendation

Aid in discriminating between current and past cytomegalovirus infection in immunocompetent individuals.


Semi-Quantitative Chemiluminescent Immunoassay




1-2 days

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation

Serum Separator Tube (SST).

Specimen Preparation

Allow specimen to clot completely at room temperature. Separate from cells ASAP or within 2 hours of collection. Transfer 2 mL serum to an ARUP Standard Transport Tube. (Min: 0.5 mL) Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens.

Storage/Transport Temperature


Unacceptable Conditions

Plasma or urine. Contaminated, hemolyzed, or heat-inactivated specimens.


Label specimens plainly as "acute" or "convalescent."


After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)

Reference Interval
Test Number
Reference Interval
0050165 Cytomegalovirus Antibody, IgG
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.

0050553 Cytomegalovirus Antibody, IgM
29.9 AU/mL or less: Not Detected.
30.0-34.9 AU/mL: Indeterminate - Repeat testing in 10-14 days may be helpful.
35.0 AU/mL or greater: Detected - IgM antibody to CMV detected, which may indicate a current or recent infection.  However, low levels of IgM antibodies may occasionally persist for more than 12 months post-infection.

Interpretive Data

Refer to report.

No compliance statements are in use for this test.


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).

Hotline History
CPT Codes

86644; 86645

Component Test Code* Component Chart Name LOINC
0050165 CMV Antibody IgG 5124-3
0050553 CMV Antibody IgM 7853-5
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
  • CMV Antibodies
  • CMV IgG & IgM
  • Cytomegalovirus (CMV) Antibodies, IgG and IgM, Serum
Cytomegalovirus Antibodies, IgG and IgM