Test Details
Methodology
Shell vial or multiwell plate cell cultures stained at 48 hours and four days
Result Turnaround Time
5 - 6 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Test Includes
Shell vials or equivalent multiwell plate with fluorescent antibody staining. CPT coding for microbiology and virology procedures often cannot be determined before the culture is performed. This culture is for the isolation of varicella-zoster, other viral agents will not routinely be detected. If a virus other than the one specified for this virus-specific culture is recovered, identification will be made, and an additional charge will apply. The client will not be telephoned to approve this charge.
Use
Aid in the diagnosis of disease caused by varicella-zoster virus (ie, chickenpox and shingles)
Special Instructions
If reflex test is performed, additional charges/CPT code(s) may apply.
Include one specimen per test request form. See Virus, Direct Detection DFA, Varicella Zoster Virus (VZV) [185009]. Indicate exact specimen source (eg, lesion) on the test request form. Do not use transport devices beyond the expiration date.
Footnotes
References
Custom Additional Information
Varicella-zoster virus is a single virus that causes two diseases: chickenpox (varicella) in children and, after reactivation from latency, shingles (zoster) in adults. Disease caused by VZV is usually self-limited; however, the disease can be life-threatening in pregnant persons, immunocompromised persons, and children who receive cancer therapy. In addition, congenital chickenpox can result in neonatal systemic disease and/or congenital malformations. Serology for the detection of VZV antibodies is available. Rapid turnaround time of serological tests can be especially important in detecting the presence of antibody (prior exposure) in pregnant persons who have been exposed to persons with chickenpox because VZIG should be given within three days (maximum) of exposure. Cell culture of VZV often has been reported to be less sensitive than direct antigen detection of VZV by immunofluorescence.1,2
Specimen Requirements
Specimen
Vesicular fluid, vesicle scrapings
Container
Viral, Chlamydia, or Mycoplasma culture transport provided by LabCorp, or other appropriate transport medium. Smears of vesicle fluid may also be submitted for DFA at additional charge [test 185009].
Collection Instructions
Do not prepare collection site with alcohol or iodophors. Vesicle fluid from several vesicles can be pooled and added to viral transport medium. Alternatively, the bases of several freshly unroofed lesions can be vigorously sampled with a sterile swab that subsequently should be placed into cold viral transport medium and sent to the laboratory as soon as possible.
Reference Range
No virus isolated
Storage Instructions
Keep specimens cold and moist.
Causes for Rejection
Bacterial swab specimen; specimen received in grossly leaking transport container; dry specimen; specimen submitted in fixative or additive; specimen received in expired transport media or incorrect transport device; inappropriate specimen transport conditions; specimen received after prolonged delay in transport (usually more than 72 hours); specimen stored or transported at room temperature; wooden shaft swab in transport device; unlabeled specimen or name discrepancy between specimen and request label
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 186031 | Viral Culture,Rapid,Varicella | 10860-5 | 186031 | Viral Culture,Rapid,Varicella | 10860-5 | |
| Order Code | 186031 | |||||
| Order Code Name | Viral Culture,Rapid,Varicella | |||||
| Order Loinc | 10860-5 | |||||
| Result Code | 186031 | |||||
| Result Code Name | Viral Culture,Rapid,Varicella | |||||
| UofM | ||||||
| Result LOINC | 10860-5 |
| Order Code | Order Name | Result Code | Result Name | UofM | Result LOINC | |
|---|---|---|---|---|---|---|
| Reflex 1 | 186032 | Viral Identification | 186032 | Viral Identification | 615-5 | |
| Reflex 1 | ||||||
| Order Code | 186032 | |||||
| Order Name | Viral Identification | |||||
| Result Code | 186032 | |||||
| Result Name | Viral Identification | |||||
| UofM | ||||||
| Result LOINC | 615-5 | |||||