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Keratin 903 (K903) High Molecular Weight by Immunohistochemistry

CPT Code(s): 88342
Specimen Required: Patient Preparation:
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 (RDL supply #47808). Available online through eSupply using RDL Connectâ„¢ or contact RDL Client Services at (888) 431-7474. (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.
Stability:Ambient: Indefinitely, Refrigerated: Indefinitely, Frozen: Unacceptable
New York DOH Approval Status: This test is New York DOH approved.
  • Cyto HMWCytokeratin High Molecular WeightHMW K903 IHCK903K903 HMW IHCK903 IHCkeratin 903 IHC