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Parathormone, Body fluid (FNA)
| Item | Value |
|---|---|
| Approval req'd? | No |
| Available Stat? | No |
| Test code | PTHB |
| Test group | Parathormone |
| Performed by | China Basin Chemistry |
| In House Availability | Monday, Wednesday, Friday day shift only |
| Method | Chemiluminescent Immunoassay (Siemens Immulite 2000) |
| Collection Instructions | Submit each FNA sample suspended in 0.5 mL (10 drops) of saline in a sterile tube. Each sample should be labeled with an identifier and the same information listed below to allow for proper identification of sample(s) on lab reports. Deliver immediately to laboratory |
| Container type | Sterile tube (see collection instructions) |
| Amount to Collect | 0.5 mL (see collection instructions) |
| Sample type | FNA fluid or tissue aspirate |
| Preferred volume | 0.5 mL fluid |
| Min. Volume | 0.5 mL fluid |
| Processing notes | Centrifuge sample in refrigerated centrifuge and freeze in original tube at -20C. |
| Units | ng/L |
| Normal range | |
| Synonyms | PTH FNA; Parathyroid hormone |
| Stability | Room temperature 2 hours, refrigerated unacceptable, frozen at -20C 1 week. |
| Turn around times | 1-3 days |
| Additional information | Assay for intact PTH in "neck" or "thyroid" cytology aspirates may be helpful in determining presence of inadvertently sampled parathyroid adenoma tissue. In aspirate samples of parathyroid adenomas, the ratio of PTH in the aspirate samples versus in serum is typically > 3 even without accounting for dilution of the aspirate sample (Owens CL et al. Diagnostic Cytopathology 26:227-231, 2008). |
| Last Updated | 3/24/2013 7:05:25 PM |
| Entry Number | 1177 |
| Lab Procedure Link | Click here for procedure |
If you have additional questions regarding this test, please call: 415-353-1667