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Lab Test Dictionary

AccuType IL28B (90251)


Real-Time Polymerase Chain Reaction (RT-PCR)


Pegylated Interferon; Ribavirin; IL28 Polymorphism (rs 12979860); Interleukin 28B; Hepatitis C genotype; IL28B

Specimen Type

Whole Blood

Performing Lab

Quest Diagnostics San Juan Capistrano

Epic ID

Other Reference Test

Lab Test Days


Standard TAT

4-6 Days

Collection Information

Specimen Required

2-5 mL Whole Blood

Container Type

Lavender (EDTA)

Collection Instructions

Whole blood collected in an ACD solution A/B (yellow-top) is also acceptable. Buccal swab collected in a DNA Genotek Oracollect Kit or Celera DNA collection Kit (follow collection kit instructions) is also acceptable. Do not eat immediately prior to sample collection. If patient has eaten recently, rinse mouth with plain water.

Processing Information - Lab Use Only

Transport Temperature


Specimen Stability

Room Temp: 8 Days (14 Days for Buccal Swab); Refrigerated: 8 Days (Unacceptable for Buccal Swab); Frozen: Unacceptable

Rejection Criteria

Incorrect collection device; Liquid has leaked from container/no liquid present

Test Volume Required

5 mL Whole Blood

Minimum Test Volume

2 mL Whole Blood

CPT Codes