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St. John Health System
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Cytomegalovirus (CMV) Antibody IgM

Order Name CMV Ab IgM
Test Number: 5503326
Revision Date 02/08/2024
Test Name Methodology LOINC Code
Cytomegalovirus Antibody IgM
Chemiluminescence Assay 5126-8 
Cytomegalovirus IgM Interpretation
24119-0 
SPECIMEN REQUIREMENTS
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
GENERAL INFORMATION
Testing Schedule Mon-Sat 
Expected TAT 1-2 Days 
Notes As of 2.8.2024 this test is no longer reflexing to IgM IFA
CPT Code(s) 86645
Internal Comments 10/20/2017 SU / Stab - JK
2.8.2024 - removing reflex  
If Cytomegalovirus (CMV) Antibodies IgM is equivocal or positive to the following test code is reflexed. (not available to order by itself only as reflex)
Order Code [5567800.CMV IgM IFA
Result Codes: [5567800CMV IgM IFA - LOINC: 5127-6
Service Provided By Labcorp Oklahoma, Inc.
Lab Section Immunology - Serology