Home
HelpTest Code iPTH Parathyroid Hormone, Intact
Additional Codes
| Epic Ordering Code | LAB108 |
| NBS code | LBC06593 |
| Service code | 31885 |
Specimen Requirements
Submit only one of the following immediately:
Preferred: Purple Top
Processing Requirements
Fast patient 10 - 12 hours before sample collection. Mix specimen well to avoid clotting. Send sample to laboratory immediately.
Specimen type: Plasma
Volume: 0.5 mL
Storage/transport requirements: Refrigerated
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
Alias
PTHIO
LOINC Code Information
14866-8
Update
Last updated 10/04/2026