Napsin A by Immunohistochemistry
Also known as: NAPSIN IHC
Use
Napsin A by Immunohistochemistry is performed as a stain-and-return technical service to detect Napsin A protein expression in patient tissue samples, typically aiding in diagnostic evaluation where Napsin A marker expression is relevant.
Special Instructions
Submit electronic request or use ARUP Immunohistochemistry Stain Form #32978 if electronic ordering is unavailable. This is a technical service only; it is performed Mon–Fri. New York Department of Health approved.
Limitations
Not provided.
New York Approved
Methodology
Immunoassay (IHC)
Biomarkers
LOINC Codes
- 94736-6
Result Turnaround Time
1-3 days
Related Documents
For more information, please review the documents below
Specimen
Tissue (FFPE)
Volume
Not provided
Minimum Volume
Min: 2 slides
Collection Instructions
Formalin fix (10 percent neutral buffered formalin) and paraffin embed specimen (cells must be prepared into a cellblock). Transport tissue block or 5 unstained (3- to 5‑micron thick sections), positively charged slides in a tissue transport kit (ARUP supply #47808 recommended but not required). If sending precut slides, do not oven bake.
Storage Instructions
Protect paraffin block and/or slides from excessive heat. Store/transport at room temperature or refrigerated. Ship in cooled container during summer months.
Causes for Rejection
Non‑representative tissue type; depleted specimens
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Indefinitely |
| Refrigerated | Indefinitely |
| Frozen | Unacceptable |