VZ IgG CSF /serum ratio

Diagnostic Use

Diagnosis of chronic VZV encephalitis

Department

Microbiology - Serology

Delphic Registration Code

SENO

Laboratory Handling

Laboratory

Both CSF and Serum are sent to LabPlus, AKL

Turnaround Time

1 week

Specimen Type

• Serum
• CSF

Specimen Requirements

Tube/Container Type:

Preferred

• Serum (Red Cap)

Acceptable

• Serum (Red Cap)
• SST II (Gold Cap)

Preferred Sample Volume (ml)

10.0

Minimum Sample Volume (ml)

5.0

Pre-testing Requirements

Consultation with neurology and microbiologists mandatory

Additional Specimen Information

Both serum and CSF are required for this test

Aliquot Instructions

Sample Type

• Serum

Minimum Volume (ml)

2.0

Transport to Lab

Chilled (2 - 8 degrees Celsius)

Additional Referral/Aliquot Information

Both Serum and CSF are required for this test

Interpretation

Cerebral VZV vasculopathy. VZV DNA may not be detectable in CSF, may require VZV antibody on CSF.

Reference Intervals

Serum and CSF IgG is expressed as a ratio and interpreted by LabPlus, Auckland

Test Method

VZ IgG serum/ CSF ratio available at Labplus. All requests require approval from a Microbiologist prior to requesting.

Contact Canterbury Health Laboratories on +64 3 364 0484 or email LabInfo@cdhb.health.nz

Referred to Labplus, Auckland

Contact Information

Enquiry Form