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Test Code ioPTH Intraoperative Parathyroid Hormone (IOPTH)

Important Note

Please pre-arrange with laboratory for Intra-Operative PTH, a day before procedure to ensure STAT results for PTH.

Additional Codes

Epic Ordering Code LAB5269
NBS code LBC06593
Service code 31885

Specimen Requirements

Submit the following:

Container:
Purple Top

Additional information: Fast patient 10 - 12 hours before sample collection. Mix specimen well to avoid clotting. Send sample to laboratory immediately. 

Processing Requirements

Centrifuge within 2 hours.

Specimen type: Plasma

Volume: 0.5mL

Specimen Stability

Specimen Type Plasma
Ambient Not available
Refrigerate 2 days
Frozen 6 months

Specimen Condition

Gross Haemolysis Alert/Reject
Icterus OK
Lipaemia OK
Others Not applicable

Methodology

Chemiluminescent Immunoassay

Days and Times Performed

24 hrs, TAT 1 day

Reference Interval

Age  
6 days – < 1 yr 0.7 – 9.4 pmol/L
1 – 8 yrs 1.7 – 6.7 pmol/L
9 – 16 yrs  2.3 – 9.3 pmol/L
17 – 18 yrs 1.7 – 6.4 pmol/L
≥ 19 yrs   2.2 – 10.0 pmol/L

Testing Laboratory

National University Hospital

Clinical Chemistry, 67724346

Useful For

Differential diagnosis of hyperparathyroidism, hypoparathyroidism, or hypercalcemia of malignancy. Assess the cure or the need for further exploration during parathyroid adenoma surgery and to determine extent of resection in patients with primary and secondary parathyroid hyperplasia.

Update

Last updated 26/07/2026

LOINC Code Information

14866-8

Alias

ioPTH