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Test Code 1704 Parathyroid Hormone (PTH) Intact, Plasma

Performing Laboratory

Barnes-Jewish Hospital Laboratory


Cobas ECLIA electrochemiluminescence

Literature References:

Package insert: Parathyroid Hormone. PTH STAT. Roche Corporation 01/2015.

Specimen Requirements

For non hospital patients, call Barnes Jewish Hospital Laboratory Customer Service at 314-362-1470 for STAT pick-up.


Specimen Type: Plasma

Container/Tube: Lavender top (EDTA)

Specimen Volume: Full tube

Day(s) Test Set Up

Monday through Sunday
Turnaround Time:
STAT: 1 hour after receipt in laboratory
Routine: results available 2-4 hours of receipt

Reference Values

15-65 pg/mL

Literature Reference:

Tietz Fundamentals of Clinical Chemistry, 5th Edition, Editors: Burtis CA and Ashwood ER, Chapter 52, p. 1758. W.B. Saunders Company, 2014

Test Classification and CPT Coding


Additional Information

For BJH Laboratory Use Only

Alternate Tube:

1 red-top tube

Note: Serum obtained from clotted whole blood collected with no anticoagulant or preservative (red-top tube) is not preferred and should be avoided if at all possible. It is acceptable if re-collection is not possible.

Laboratory Processing Instructions:

Test performed in BJH Core Lab.  Processed by automated line for delivery to the Cobas 8000. Completed specimens are stored refrigerated for 5 days. For PTH gradient, create 2 PTH orders, comment “grafted” and “non-grafted.”

Specimen Transport Temperature


LOINC Code Information

Name LOINC Code
Parathyroid Hormone Intact, Plasma 2731-8


Special Instructions

Analyte Stability Chart