PTHFN - Overview: Parathyroid Hormone, Fine-Needle Aspiration Biopsy (FNAB)-Needle Wash

Test Catalog

Test Name

Test ID: PTHFN    
Parathyroid Hormone, Fine-Needle Aspiration Biopsy (FNAB)-Needle Wash

Useful For Suggests clinical disorders or settings where the test may be helpful

An adjunct to cytology examination of fine-needle aspiration specimens to confirm or exclude presence of parathyroid tissue in the biopsied area


Measurement of parathyroid hormone (PTH) in fine-needle aspiration biopsies (FNAB) washings could be used to discriminate thyroid tissues from enlarged parathyroid glands and also to facilitate parathyroid localization prior to surgery.


This test is best used as an adjunct to cytology examination to confirm or exclude the presence of parathyroid tissue in the biopsied area.


PTH values of 100 pg/mL and above are suggestive of the presence PTH-secreting tissue at the site biopsied or along the needle track.

Special Instructions and Forms Library of PDFs including pertinent information and consent forms, specimen collection and preparation information, test algorithms, and other information pertinent to test

Method Name A short description of the method used to perform the test

Electrochemiluminescence Immunoassay

NY State Approved Indicates the status of NY State approval and if the test is orderable for NY State clients.


Reporting Name A shorter/abbreviated version of the Published Name for a test; an abbreviated test name

PTH, FNAB, Needle Wash

Aliases Lists additional common names for a test, as an aid in searching

PTH Needle Washout