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HelpTest Code ioPTH Intraoperative Parathyroid Hormone (IOPTH)
Specimen Requirements
Specimen Type: Whole Blood
Container/Tube: Purple Top (EDTA)
Volume: 3.0 mL
Minimum Volume: 3.0 mL blood
Collection Instructions: Fast patient 10 - 12 hours before sample collection. Mix specimen well to avoid clotting. Send sample to laboratory immediately.
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.
Service Code
31885
Update
Last updated 13/05/2025
Alias
ioPTH
Laboratory Code
LAB5269
LOINC Code Information
14866-8