Parathyroid hormone

Test Sample Type

  • Serum

Normal Values

  • Intact parathyroid hormone: 10-50 pg/ml
  • N-terminal fraction: 8-24 pg/ml
  • C-terminal fraction: 0-340 pg/ml

Purpose of the Test

  • To diagnose suspected parathyroid disorders
  • To differentiate between clinical diagnoses that result in calcium and phosphate abnormalities

Increase in

Decrease

  • Hypoparathyroidism

Interfering Factors

  • Noncompliance with fasting requirements
  • Elevated lipid levels