Parathyroid Hormone, Fine Needle Aspiration (FNA)
Ordering Recommendation
Use to aid in the differentiation of parathyroid tissue from thyroid tissue.
New York DOH Approval Status
Specimen Required
Fine needle aspiration in saline. Also acceptable: Specimens collected in Green (Sodium or Lithium Heparin) or Lavender (EDTA).
Specimen must be nonviscous, nonhemolyzed, and free of particulate matter. Centrifuge to remove cellular material and visible hemolysis. Transfer 0.5 mL saline needle rinse to an ARUP Standard Transport Tube. (Min: 0.5 mL)
Frozen.
Specimen types other than those listed. Specimens too viscous to be aspirated by the instrument. Grossly hemolyzed samples. Grossly lipemic samples.
Indicate source on test request form.
Ambient: 8 hours; Refrigerated: 24 hours; Frozen: 6 months
Methodology
Quantitative Electrochemiluminescent Immunoassay
Performed
Sun-Sat
Reported
Within 24 hours
Reference Interval
A reference interval has not been established for body fluid specimens.
Interpretive Data
Parathyroid hormone (PTH) is measured by Roche electrochemiluminescent immunoassay. This test is FDA cleared but is not labeled for use with FNA fluid. The performance characteristics of this test were determined by ARUP.
This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the U.S. Food and Drug Administration. This test was performed in a CLIA-certified laboratory and is intended for clinical purposes.
Modified FDA
Note
Hotline History
CPT Codes
83970
Components
Component Test Code* | Component Chart Name | LOINC |
---|---|---|
2001492 | Parathyroid Hormone, FNA | 59835-9 |
Aliases
- FNA PTH
- Parathyroid Hormone, Intact, Fine Needle Aspiration
- PTH FNA
- PTH needle washout