ARUP's Laboratory Test Directory

Keratin 903 (K903) High Molecular Weight by Immunohistochemistry : 2003978
[ image for: Immunohistochemistry Stain Form Recommended]
Immunohistochemistry Stain Form Recommended
  


Mnemonic: K903 IHC

Methodology: Immunohistochemistry
Performed: Mon-Fri
Reported: 1-3 days
Specimen Required: Collect: Tissue or cells.

Specimen Preparation: Formalin fix (10 percent neutral buffered formalin) and paraffin embed specimen (cells must be prepared into a cellblock). Protect paraffin block and/or slides from excessive heat. Transport tissue block or 5 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.

Remarks: IMMUNOHISTOCHEMISTRY ORDERING AND SUBMISSION DETAILS: Submit electronic request. If you do not have electronic ordering capability, use an ARUP Immunohistochemistry Stain Form (#32978) with an ARUP client number. For additional technical details, contact ARUP Client Services at (800) 522-2787.

Unacceptable Conditions: Specimens submitted with non-representative tissue type. Depleted specimens.

Stability (collection to initiation of testing): Ambient: Indefinitely, Refrigerated: Indefinitely, Frozen: Unacceptable
Interpretive Data:

See Compliance Statement B: www.aruplab.com/CS
Note: All stains will be handled as "Stain and Return" unless a consultation is requested. To request a consultation, submit the pathology report, all associated case materials (clinical history, blocks, slides, etc.), and the Anatomic Pathology requisition form (form # 32960) in place of the Immunohistochemistry Stain Form.
CPT Code(s): 88342
Cross References: Cyto HMW (Keratin 903 (K903) High Molecular Weight by Immunohistochemistry), Cytokeratin High Molecular Weight (Keratin 903 (K903) High Molecular Weight by Immunohistochemistry), K903 (Keratin 903 (K903) High Molecular Weight by Immunohistochemistry)