Parathyroid hormone (PTH)

About Test

The Parathyroid Hormone (PTH) test measures the level of parathyroid hormone in the blood. PTH is produced by the parathyroid glands and plays a crucial role in regulating calcium and phosphorus levels in the body. It helps maintain bone health, supports the functioning of nerves and muscles, and ensures proper calcium balance by influencing the absorption of calcium in the intestines and the release of calcium from bones.

This test is commonly used to evaluate parathyroid function and diagnose conditions related to abnormal calcium levels, such as hyperparathyroidism (excessive PTH production) or hypoparathyroidism (insufficient PTH production). Elevated PTH levels can indicate primary or secondary hyperparathyroidism, often associated with conditions like chronic kidney disease or vitamin D deficiency. Low PTH levels may be seen in cases of hypoparathyroidism or certain types of genetic disorders.

Monitoring PTH levels helps healthcare providers diagnose and manage disorders related to calcium and bone metabolism, guiding treatment strategies to ensure balanced hormone levels and overall health. Regular testing is important for managing conditions that affect bone density, calcium balance, and parathyroid function.