Ordering Recommendation

Use to aid in the differentiation of parathyroid tissue from thyroid tissue.

Mnemonic
PTH FNA
Methodology

Quantitative Electrochemiluminescent Immunoassay

Performed

Sun-Sat

Reported

Within 24 hours

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect

Fine needle aspiration in saline. Also acceptable: Specimens collected in Green (Sodium or Lithium Heparin) or Lavender (EDTA).

Specimen Preparation

Specimen must be non-viscous, non-hemolyzed, 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)

Storage/Transport Temperature

Frozen.

Unacceptable Conditions

Specimen types other than those listed. Specimens too viscous to be aspirated by the instrument. Grossly hemolyzed samples. Grossly lipemic samples.

Remarks

Indicate source on test request form.

Stability

Ambient: 8 hours; Refrigerated: 24 hours; Frozen: 6 months

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.

Compliance Category

Modified FDA

Note
Hotline History
N/A
CPT Codes

83970

Components
Component Test Code* Component Chart Name LOINC
2001492 Parathyroid Hormone, FNA 59835-9
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • FNA PTH
  • Parathyroid Hormone, Intact, Fine Needle Aspiration
  • PTH FNA
  • PTH needle washout
Parathyroid Hormone, Fine Needle Aspiration (FNA)