Lab Dept:

Microbiology/Virology

Test Name:

Viral Susceptibility

General Information

Lab Order Codes:

VSUS

Synonyms:

Herpes Simplex Virus (HSV) Phenotyping for Drug Resistance; Acyclovir Resistance; Zovirax Resistance; Foscarnet Resistance

CPT Codes:

87252 x2 - Virus isolation; tissue culture inoculation, observation, and presumptive identification by cytopathic effect
87253 x2 - Virus isolation; tissue culture, additional studies or definitive identification, each isolate

Test Includes:

Plaque Reduction Assay for specified anti-viral

Logistics

Test Indications:

To evaluate drug resistance in clinical isolates.

Lab Testing Sections:

Virology - Sendouts

Referred to:

LabCorp

HSV for Acyclovir: Lab Corp Test: 138370
HSV for Foscarnet: Lab Corp Test: 138362

Phone Numbers:

MIN Lab: 612-813-5806

STP Lab: 651-220-6555

Test Availability:

Daily, 24 hours

Turnaround Time:

3 – 4 weeks

Special Instructions:

• Contact Virology Laboratory to forward viral isolate.
• Specify anti-viral to be tested

Specimen

Specimen Type:

• Actively growing isolate in tube with media (preferred)
• Swab in universal transport media (eye, genital, oral, urethral, vesicle or throat

Container:

Cell culture tube with CPE

Special Processing:

Fill tube with media

Transport/Storage:

Transport at room temperature in biohazard shipping container.

Interpretive

Reference Range:

Accompanies report

Methodology:

Plaque Reduction Assay

References:

LabCorp Laboratories Web Page www.labcorp.com July 2015

Updates:

5/7/2012: CPT and specimen updates.
3/6/2014: CPT update.