Sign in →

Test Code PTHI PARATHYROID HORMONE (PTH), INTACT, SERUM

Additional Codes

Software Test Code
Label Text                                            PTHI
EPIC LAB108                                        

Performing Laboratory

NorDx Laboratories

Useful For

Distinguishing normal individuals from patients with primary hyperparathyroidism, hypoparathyroidism, and patients with hypercalcemia of malignancy

Method Name

Electrochemiluminescent Immunoassay (ECLIA)

Reference Values

15-65 pg/mL

 

Parathyroid hormone (PTH) values should be interpreted in conjunction with a serum calcium value. Since PTH is now only orderable as an individual test, a separate calcium order or value is required.

Days and Times Test Performed

Monday through Sunday

Report Available

1 Day

Specimen Type

Serum

Preferred Container

Serum Separator Tube (SST)

Preferred Volume

Serum: 1.5 mL (Serum Separator Tube (SST))

Minimum Volume

Serum: 0.6 mL (Serum Separator Tube (SST))

Specimen Collection and Handling

Spin specimen, separate from clot and send refrigerated.

Specimen Stability Information

Specimen Type: Serum

Frozen: 1 Month

Refrigerated: 2 Days

Must be spun/separated within: 2 Hours

Add On Capable

Yes

Advance Beneficiary Notice Requirements

No ABN Required

CPT Code Information

CPT Code

CPT Description

CPT Disclaimer
83970 Parathormone (Parathyroid Hormone), Quantitative  

Keywords

IMMUNO PTH (PARATHYROID HORMONE)

INTACT PTH (PARATHYROID HORMONE)

PTH (PARATHYROID HORMONE)

Performing Laboratory Location

NorDx Laboratories

Clinical Significance

No sample should be collected on patients receiving therapy with high biotin doses(i.e. biotin therapy for Multiple Sclerosis or oncology patients; skin, hair and nail supplements, or multivitamins containing > 5 mg/day) until at least 12 hours after the last biotin administration. If unsure, or if the clinical picture does not fit the results please contact the laboratory . We have methods to check for biotin interference as well as for any other interferences and for the accuracy of the results.

Biotin interference would falsely decrease the result of this assay.

LOINC Code Information

2731-8

Acceptable Alternative Container(s)

Red Top Tube

Rejection Information

Gross hemolysis