Chymotrypsin by Immunohistochemistry
Also known as: CHYMO IHC
Use
This immunohistochemistry stain detects chymotrypsin in formalin-fixed, paraffin‑embedded tissue sections or cell blocks. It is intended as a technical “stain and return” service—enabling pathologic assessment using ARUP’s immunohistochemistry stain, performed in a CLIA‑certified lab for clinical purposes, with results returned to the submitting laboratory or institution. It has not been cleared or approved by the FDA and is offered as a laboratory‑developed test under CLIA regulations.
Special Instructions
Not provided.
Limitations
Specimens with non‑representative tissue type or depleted specimens are unacceptable. Frozen specimens are unacceptable. Stability is indefinite at ambient or refrigerated temperatures. This stain has not been FDA cleared or approved, and performance characteristics are validated internally by ARUP.
New York Approved
Methodology
Immunoassay (IHC)
Biomarkers
LOINC Codes
- 94736-6 - Tissue block ID Spec
Result Turnaround Time
1-3 days
Related Documents
For more information, please review the documents below
Specimen
Tissue (FFPE)
Volume
Not provided
Minimum Volume
2 slides
Container
tissue transport kit (recommended but not required)
Collection Instructions
Transport tissue block or 5 unstained (3‑ to 5‑micron thick) positively charged slides; if sending precut slides, do not oven bake.
Storage Instructions
Room temperature or refrigerated during transport; 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 |
Other tests from different labs that may be relevant