Factor XIIIa by Immunohistochemistry
Also known as: FAC 13 IHC
Use
This is a technical (stain and return) immunohistochemistry (IHC) service for detecting Factor XIIIa antigen in tissue or cell specimens. It is used to characterize or classify cellular morphology by identifying the presence of Factor XIIIa protein in formalin-fixed, paraffin‑embedded tissue or cell preparations, supporting histopathologic interpretation in diagnostic settings.
Special Instructions
Specimens must be formalin-fixed and paraffin-embedded, or prepared into a cell block; tissue block or minimum 2 positively charged unstained slides (3–5 µm) may be sent in ARUP transport kit #47808. Submit electronic order or use ARUP IHC Stain Form (#32978) if e‑ordering is unavailable. Protect specimens from excessive heat; do not oven‑bake precut slides.
Limitations
Unacceptable conditions include non‑representative tissue types or depleted specimens. Frozen specimens are unacceptable. There is no stability guarantee under frozen conditions. This test is strictly a technical stain service and does not include interpretation beyond stain performance.
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
Not provided
Container
Tissue transport kit (ARUP supply #47808)
Collection Instructions
Protect paraffin block and/or slides from excessive heat; if sending precut slides, do not oven bake; send tissue block or 5 unstained (3‑ to 5‑micron thick) positively charged slides (min: 2).
Storage Instructions
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 |