Atlas
Bone & calcium

Parathyroid hormone (intact)iPTH

Calcium-regulating hormone; central to differentiating causes of hyper/hypocalcemia.

Sample
Serum
Clinical reference range
15 to 65 pg/mL
Adult
Conv: 1565 pg/mL
Biology

What it measures

Released from parathyroid chief cells in response to low ionized Ca via the calcium-sensing receptor.

Clinical use

Why we order it

Hyperparathyroidism (PTH inappropriately normal/high with high Ca), CKD-MBD, vitamin D deficiency.

Related

Related biomarkers