Understand Your Test

Parathyroid Hormone (PTH)

Formal Name

 Parathyroid Hormone

Why Get Tested?

To determine the cause of calcium imbalances; to evaluate parathyroid function; to diagnose and differentiate between primary, secondary, and tertiary hyperparathyroidism; to diagnose hypoparathyroidism; during surgery for hyperparathyroidism to confirm removal of the gland(s) causing the problem.

When To Get Tested?

When calcium blood levels are higher or lower than normal; when you are having surgery for hyperparathyroidism; when your health practitioner wants to determine how well your parathyroid glands are functioning.