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A B C D E F G H I J K L M N O P Q

Test Identifier Information

 
Registration CodeCMV
Method

ELFA on mini Vidas.

Diagnostic Use / Indications

Diagnosis of primary CMV is based upon the new appearance of CMV-specific IgG in an individual who was previously seronegative or the detection of CMV IgM antibody with low IgG avidity. 

Women with suspected CMV infection in pregnancy should have CMV serology testing for IgG and IgM, and IgG avidity if CMV IgG and IgM are positive.

External Price$110.08(Exclusive of GST)
  

Specimen Collection

 
Specimen Collection Protocols

 Plasma is unsuitable.

Patient Specimen5 mL plain blood (Red)
Paediatric Specimen1 mL plain blood(Red)
  

Instructions for Referral to CHLabs

 
Aliquot InstructionsMinimum aliquot 500uL. Preferred aliquot, 600uL. Aliquot storage, fridge 4C.
Aliquot Transport to CHLOvernight
  

CHLabs Laboratory

 
DepartmentMicrobiology-Serology
Contact Details Email Email
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Contact Phone Number 03 3640 416 x80416
Test AvailabilityMon - Fri, business hours only
Turnaround Time1-2 days
Interpretation

  Diagnosis of primary CMV is based upon the new appearance of CMV-specific IgG in an individual who was previously seronegative or the detection of CMV IgM antibody with low IgG avidity.  

Women with suspected CMV infection in pregnancy should have CMV serology testing for IgG and IgM, and IgG avidity if CMV IgG and IgM are positive.  

CMV IgG avidity is more useful for timing maternal infection if primary infection during pregnancy is suspected. A low CMV IgG avidity is suggestive of recent infection (<3 months); high avidity suggests infection >3 months ago; Intermediate avidity – is not informative for assessing timing of infection. The IgG avidity testing is now standard and comparable within a laboratory, although differences in the avidity index depend on the kit/ technique the laboratory used and serial results from different laboratories should be compared with caution.

 

Additional Information

 Serum from pregnant women following diagnostic testing is stored for 12 months. Retrospective testing of stored sera from first trimester booking bloods can be useful to determine if a primary infection has occurred during pregnancy.

Delphic Number Test Number328

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