Parathyroid Hormone, Fine Needle Aspiration (PTH, Intact)
Use
Semiquantitative test to determine the presence of parathyroid hormone–secreting cells in fine needle aspirate specimens from the parathyroid region or adjacent sites. Detection of large amounts of intact PTH in cells not typically expressing it may indicate parathyroid tumor metastasis or ectopic parathyroid tissue.
Special Instructions
Collect fine needle aspirate using biopsy needle into sterile container with saline. Transfer approximately 1 mL into screw-cap sterile aliquot tube and freeze immediately. Transport specimen in frozen state to the laboratory.
Limitations
Not provided.
Methodology
Immunoassay (Immunochemiluminometric Assay)
Biomarkers
Result Turnaround Time
Not provided.
Related Documents
For more information, please review the documents below
Specimen
Other
Volume
1 mL
Minimum Volume
Not provided
Container
Sterile Container with Saline; screw‑cap aliquot tube
Collection Instructions
Collect fine needle aspirate with biopsy needle; transfer 1 mL of FNA to a sterile aliquot tube (screw cap) and freeze immediately.
Storage Instructions
Freeze immediately; transport to laboratory frozen.
Stability Requirements
| Temperature | Period |
|---|---|
| Frozen | Frozen 6 months |