Mycobacterium Tuberculosis by Immunohistochemistry
Also known as: MTB IHC
Use
Immunohistochemical staining for Mycobacterium tuberculosis aids in identifying mycobacterial organisms within tissue sections, providing qualitative detection in paraffin-embedded specimens for diagnostic confirmation in suspected tuberculosis cases.
Special Instructions
This test is performed as a stain-and-return service only, with ordering recommendations referenced in the ARUP Immunohistochemistry Stain Offerings brochure.
Limitations
Unacceptable specimens include tissue not processed into paraffin block, serum, blood, or other fluids, or tissue not mounted on positively charged slides. Sending precut slides that have been oven‑baked is not acceptable. Frozen specimens are unacceptable. The stain is qualitative and interpretive; limits exist based on tissue processing and slide quality.
New York Approved
Methodology
Immunoassay (IHC)
Biomarkers
LOINC Codes
- 94736-6
- 49461-7
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 or tissue block
Container
Tissue Transport Kit (ARUP supply #47808 highly recommended)
Collection Instructions
Transport tissue block or 2 unstained (3‑ to 5‑micron thick) positively charged slides; if sending precut slides, do not oven bake.
Storage Instructions
Room temperature; also acceptable refrigerated; ship in cooled container during summer.
Causes for Rejection
Tissue not processed into paraffin block; serum, blood, or other body fluids; tissue not on positively charged slides; frozen specimens; oven‑baked slides.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Indefinitely |
| Refrigerated | Indefinitely |
| Frozen | Unacceptable |