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22551 Cytomegalovirus Antibody, IgG and IgM

Cytomegalovirus Antibody, IgG and IgM
Test Code: CMV
Synonyms/Keywords
CMV Antibody, CID Antibodies, Anti-CMV​
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
No​ Serum​Serum Separator Tube (SST) ​Red Top Tube (RTT) 1.0 mL​0.5 mL​0.5 mL​
Collection Processing Instructions

Specimens collected in gel-barrier tubes must be removed from the primary tube prior to transporting to Marshfield. Do not send primary collection tube.

Serum from samples collected in a RTT must be removed from the clot within one hour for storage or transport.
Specimen Stability Information
Specimen Type Temperature Time
Serum​ ​ Refrigerate​ 5 days​
Freeze​ > 5 days​
Rejection Criteria
Hemolyzed specimens
​Lipemic specimens
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Marshfield​ Wednesday and Friday​ 1 day​ Automated EIA (VIDAS)  ​
Reference Range Information
Performing Location Reference Range
Marshfield​

IgM: Negative

IgG: Negative ​

Interpretation
A positive IgG generally indicates infection with CMV at some time. The simultaneous detection of IgM antibodies signifies recent infection or reactivation of latent infection.
 
General interpretive guidelines:
IgG Negative: Not infected or very early infection
IgG Positive: Infected
IgG Positive / IgM Negative: Prior exposure at indeterminate time.
IgG Positive / IgM Positive: Suggests acute infection.
IgG Negative / IgM Positive: Early disease, re-activation, or false-positive IgM. Repeat in 2-3 weeks.
Equivocal Results: Indeterminate. Retest if clinically indicated.​
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
86644​ ​ 1​ CMV IgG​ ​
86645​ ​ ​1 CMV IgM ​ ​
Synonyms/Keywords
CMV Antibody, CID Antibodies, Anti-CMV​
Ordering Applications
Ordering Application Description
​Centricity

​a. CMV-Ab (IgG and IgM)

b. CMV (Cytomegalovirus Antibody)

​Cerner ​Cytomegalovirus Antibody IgG and IgM
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
No​ Serum​Serum Separator Tube (SST) ​Red Top Tube (RTT) 1.0 mL​0.5 mL​0.5 mL​
Collection Processing

Specimens collected in gel-barrier tubes must be removed from the primary tube prior to transporting to Marshfield. Do not send primary collection tube.

Serum from samples collected in a RTT must be removed from the clot within one hour for storage or transport.
Specimen Stability Information
Specimen Type Temperature Time
Serum​ ​ Refrigerate​ 5 days​
Freeze​ > 5 days​
Rejection Criteria
Hemolyzed specimens
​Lipemic specimens
Reference Range Information
Performing Location Reference Range
Marshfield​

IgM: Negative

IgG: Negative ​

Interpretation
A positive IgG generally indicates infection with CMV at some time. The simultaneous detection of IgM antibodies signifies recent infection or reactivation of latent infection.
 
General interpretive guidelines:
IgG Negative: Not infected or very early infection
IgG Positive: Infected
IgG Positive / IgM Negative: Prior exposure at indeterminate time.
IgG Positive / IgM Positive: Suggests acute infection.
IgG Negative / IgM Positive: Early disease, re-activation, or false-positive IgM. Repeat in 2-3 weeks.
Equivocal Results: Indeterminate. Retest if clinically indicated.​
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Marshfield​ Wednesday and Friday​ 1 day​ Automated EIA (VIDAS)  ​
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
86644​ ​ 1​ CMV IgG​ ​
86645​ ​ ​1 CMV IgM ​ ​
For most current information refer to the Marshfield Laboratory online reference manual.