Progesterone Receptor
Use
Progesterone receptor (PR) is a breast hormone that can be used as a prognostic indicator for breast cancer. This test helps in determining hormone receptor status, which is crucial for choosing the appropriate therapy for breast cancer patients.
Special Instructions
Not provided.
Limitations
Specimens must be fixed in 10% NBF or B plus. All other fixatives will be rejected. Fresh tissues have a stability of ≤ 72 Hours, whereas FFPE blocks and unstained slides are stable indefinitely. Specimens may be transferred to 70% alcohol for transportation purposes after fixation in 10% NBF or B plus.
Methodology
Immunoassay (IHC)
Biomarkers
Progesterone Receptor
Protein
Result Turnaround Time
2 days
Related Documents
For more information, please review the documents below
Specimen
Tissue (Fresh)
Volume
Not provided
Minimum Volume
Not provided
Collection Instructions
Fixative should be at a 20:1 fixative to tissue ratio, 10% neutral buffered formalin (NBF) for 6-72 hours (48-72 hours PREFERRED).
Storage Instructions
15°C to 25°C
Causes for Rejection
Specimens must be fixed in 10% NBF or B plus. All other fixatives will be rejected.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | ≤ 72 Hours |