Eye Fluid Viral PCR Quant Panel

General Information

Lab Name

Eye Fluid Viral PCR Quant Panel

Lab Code

EYEVQP

Epic Name

Eye Fluid Viral PCR Quant Panel

Description

The detection and quantitation of CMV, Herpes Simplex Virus (HSV) and Varicella Zoster Virus (VZV) by real- time PCR from eye fluid.

The detection and quantitation of CMV by real-time PCR. The PCR detects amplicons of the immediate-early (IE) viral protein 1 (IE1, UL123) and Glycoprotein B (gB, UL55) coding regions. Quantitation of CMV DNA (IU/mL) is achieved by amplifying a standard curve at the same efficiency, consisting of serial dilutions of a known amount of DNA containing the CMV amplicons. Results are reported in International Units per milliliter (IU/mL). The minimum virus level that gives a positive result in 95% of replicates is 300 IU/mL (2.48 log IU/mL).

The detection and quantitation of Herpes Simplex virus (HSV) by real-time PCR amplification. PCR detects amplicons of the gB gene for both HSV-1 and HSV-2. The two probes used in the reaction, specific either to HSV-1 or HSV-2 are labeled with different reporter dyes. Quantitation of HSV DNA (copies/mL) is achieved by amplifying a standard curve consisting of serial dilutions of a known amount of DNA containing the HSV-1 and HSV-2 amplicons. Results are reported in copies per milliliter (copies/mL). The minimum virus level that gives a positive result in 95% of replicates is 250 copies/mL (2.40 log copies/mL).

The detection and quantitation of Varicella Zoster Virus (VZV) by real-time PCR amplification. The primers used in this PCR reaction amplify a fragment of the ORF62 region. Quantitation of VZV DNA (copies/mL) is achieved by amplifying a standard curve in each run, consisting of serial dilutions of a known amount of DNA containing the VZV amplicons. The minimum virus level that gives a positive result in 95% of replicates is 75 copies/mL (1.88 log copies/mL). Results are reported in copies per milliliter (copies/mL).

This test was developed and its performance characteristics determined by the University of Washington Department of Laboratory Medicine and Pathology. It has not been cleared or approved by the US Food and Drug Administration.

Components

Code Name
CMVEYE CMV Quant PCR for Eye Fluids
CMVQNS CMV Quant Specimen Description
CMQNR CMV Quant Result
CMLOG CMV DNA IU/mL (Log10)
CMVQNI CMV Quant Interpretation
HS12QN HSV Type 1 & 2 Quant PCR, Blood/Eye Fluid
HSVQNS HSV Specimen_PCR Quant
HSVQN1 HSV Type 1 Quant PCR Result
HSVLO1 HSV1 DNA Copies/mL (Log 10)
HSVQN2 HSV Type 2 Quant PCR Result
HSVLO2 HSV2 DNA Copies/mL (Log 10)
HSVQNI HSV Interpretation_PCR Quant
HSVQNM HSV Type 1 and 2 Quant PCR Method
VZVEYE VZV Quant PCR for Eye Fluids
VZVQNS VZV Quant Specimen Descp.
VZVQNR VZV Quant Result
VZVLOG VZV DNA Copies/mL (Log 10)
VZVQNI VZV Quant Interp.

Interpretation

Method

Real-time Polymerase Chain Reaction.

Reference Range

See individual components

Ordering & Collection

Specimen Type

Eye Fluid

Collection

Eye Fluid: 50 µL in sterile container.

Unacceptable Samples: Do not send syringe with needle. Only send syringe or transfer fluid to sterile container.

Quantity

requested: 50 microliters
minimum: 50 microliters

Processing

Eye Fluid: Freeze at -10°C or colder and ship on dry ice. If freezer and/or dry ice is not available, ship immediately at 2-8°C (ice pack). Sample may be stored at 2-8°C (ice pack) for up to 48 hours of collection. Samples stored at 2-8°C greater than 48 hours old may be rejected. Do not freeze/thaw.

Outside Laboratories: Ship samples on dry ice. If freezer and/or dry ice is not available, ship immediately at 2-8°C (ice pack). Shipment time must not exceed 48 hours from collection. Sample may be stored at 2-8°C (ice pack) for up to 48 hours of collection. Samples stored at 2-8°C greater than 48 hours old may be rejected. Do not freeze/thaw.

Performance

LIS Dept Code

Performing Location(s)

Other Virology, Molecular
206-685-6656

Virology Laboratory, Ste 320
1616 Eastlake Ave E.
Seattle, WA 98102

Frequency

Tuesday and Friday.

Available STAT?

No

Billing & Coding

CPT codes

87497, 87530x2, 87799

LOINC

26435-8

Interfaced Order Code

UOW3550