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Labcorp Oklahoma, Inc.
Test Directory


Cytomegalovirus (CMV) Antibodies IgG and IgM

Order Name CMV Ab G/M
Test Number: 5502876
Revision Date 02/08/2024
Test Name Methodology LOINC Code
Cytomegalovirus Antibody IgG
Chemiluminescence Assay 13949-3 
Cytomegalovirus IgG Interpretation
Cytomegalovirus Antibody IgM
Chemiluminescence Assay 5126-8 
Cytomegalovirus IgM Interpretation
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1 mL Serum Clot Activator SST Frozen
Instructions Separate Serum from cells ASAP within 2 hours of collection.
Serum can be refrigerated up 48 hours before frozen.
Specimen Stability: Room Temperature: Unacceptable, Refrigerated: 48 hours, Frozen 30 Days
Testing Schedule Mon-Sat 
Expected TAT 1-2 Days  
Notes This test will no longer reflex to an IgM IFA confirmation
CPT Code(s) 86644, 86645
Lab Section Immunology - Serology