Laboratory Services
Phosphotungstic Acid-Hematoxylin Stain
Print this pageUpdated Test Information:
| Test Description |
Phosphotungstic Acid-Hematoxylin Stain
|
|
|---|---|---|
| Synonym(s) |
PTAH |
|
| Test ID |
PTAH |
|
| Specimen Type |
Formalin-fixed, paraffin-embedded tissue blocks (FFPE). If tissue blocks are not available, unstained slides are acceptable (please submit 1-2 slides per antibody to be tested, cuts must be 4 microns thick). |
|
| Specimen Collection / Processing Instructions |
Tissue removed during a surgical procedure and placed in 10% NBF soon after removal from the patient. Appropriate tissue for requested staining. |
|
| Required Information |
Complete the Incyte Diagnostics requisition with the patient's demographics and relevant clinical history. |
|
| Stability |
Ambient: Indefinite |
|
| Unacceptable Specimen Conditions |
Slides or paraffin blocks with no tissue remaining. Samples fixed in fixatives other than 10% neutral buffered formalin. Paraffin blocks that have been overheated or frozen. |
|
| Department (code) |
Histology |
|
| Methodology |
Special Stain, Manual |
|
| Estimated TAT |
1–2 business days from receipt |
|
| Testing Schedule |
Monday–Saturday |
|
| Retention |
Blocks:10 years |
|
| CPT Code(s) |
88313 |
