Ordering Recommendation

Refer to ARUP Immunohistochemistry Stain Offerings brochure at www.aruplab.com/ap/resources.

Mnemonic

IRF8 IHC

Methodology

Qualitative Immunohistochemistry (IHC)

Performed

Mon-Fri

Reported

1-3 days

New York DOH Approval Status

Specimens from New York clients will be sent out to a New York DOH approved laboratory, if possible.

Specimen Required

Patient Preparation
Collect

Tissue

Specimen Preparation

Formalin fix (10 percent neutral buffered formalin) and paraffin embed specimen (cells must be prepared into a cell block). Protect paraffin block and/or slides from excessive heat. Transport tissue block or 2 unstained (3- to 5-micron thick sections), positively charged slides in a tissue transport kit (ARUP supply #47808). Available online through eSupply using ARUP Connect™ or contact ARUP Client Services at 800-522-2787. (Min: 2 slides). If sending precut slides, do not oven bake.

Storage/Transport Temperature

Room temperature or refrigerated. Ship in cooled container during summer months.

Unacceptable Conditions

Specimens submitted with nonrepresentative tissue type. Depleted specimens. Tissue or cells not processed and placed in a paraffin block; serum, blood, or other body fluids; tissue not mounted on positively charged slides.

Remarks
Stability

Ambient: Indefinitely; Refrigerated: Indefinitely; Frozen: Unacceptable

Reference Interval

Interpretive Data



Compliance Category

Note

Hotline History

N/A

CPT Codes

88342

Components

Component Test Code* Component Chart Name LOINC
3006163 IRF8 RefNum
3006164 IRF8_IHC
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.

Aliases

  • Interferon Regulatory Factor 8
  • IRF8
IRF8 by Immunohistochemistry