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Cytomegalovirus (CMV) Antibody, IgM (8000100345)
Test Mnemonic:
Specimen Requirements:

Serum separator tube (SST)


Serum separator tube (SST)


Minimum Volume:

1 mL of serum



Refrigerate (2-8°C) up to 7 days; Samples should be frozen (<-20°C)

Specimen Preparation:

Within two hours of collection, centrifuge


Refrigerate (2-8°C) up to 7 days; Samples should be frozen (<-20°C)

Causes for Rejection:

Gross hemolysis, bacterial contamination, lipemic. Specimen container unlabeled or labeled incorrectly. No date and time of collection or no collector information on order.

Reference Range:

Negative - no CMV IgM detected; Positive - past or current infection

Turnaround Time:

Test performed daily, Sunday through Friday


Multiplexing bead immunoassay


Clinical Microbiology


CMV IgM Antibody; CMVM

Clinical Indication:

Screening for CMV antibodies, IgM

Patient Preparation :

Routine venipuncture

CPT 4 Code:




If the patient has no detectable antibody, testing at greater than two-week intervals is appropriate.

When ordering tests for which Medicare or Medicaid reimbursement will be sought, physicians should only order tests that are medically necessary for the diagnosis or treatment of the patient. Components of the organ or disease panels may be ordered individually. The diagnostic information must substantiate all tests ordered and must be in the form of an ICD-10 code or its verbal equivalent.
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