Intact Parathyroid Hormone

INTACT PARATHYROID HORMONE Test

The Intact Parathyroid Hormone (iPTH) test measures the level of biologically active parathyroid hormone (PTH) in the blood. PTH is produced by the parathyroid glands and plays a key role in maintaining the body's calcium and phosphorus balance.

PTH works together with vitamin D and the kidneys to regulate calcium levels in the blood. Therefore, measuring intact PTH can help healthcare professionals determine whether abnormal calcium levels are related to parathyroid gland function.

The test is commonly used to evaluate hyperparathyroidism, hypoparathyroidism, abnormal calcium levels, vitamin D-related disorders, and certain kidney-related mineral abnormalities. It is often interpreted along with calcium, phosphorus, vitamin D, and kidney function tests.

This Test is Recommended for Individuals:

• With high or low blood calcium levels
• Being evaluated for hyperparathyroidism or hypoparathyroidism
• With unexplained bone loss or recurrent kidney stones
• Being evaluated for abnormal calcium or phosphorus metabolism
• With suspected vitamin D-related mineral disorders
• With certain chronic kidney conditions affecting calcium and phosphorus balance
• Being monitored after treatment or surgery for a parathyroid disorder

FAQs

1. What is the Intact Parathyroid Hormone (iPTH) test used for?
The iPTH test measures PTH levels in the blood and helps evaluate how effectively the parathyroid glands regulate calcium and phosphorus in the body.

2. What does a high PTH level indicate?
A high PTH level may occur when the parathyroid glands produce excessive hormone, known as hyperparathyroidism. It can also increase as a response to low calcium, vitamin D deficiency, or certain kidney disorders. PTH should therefore be interpreted together with calcium and other relevant test results.

3. What does a low PTH level indicate?
A low PTH level may occur when the parathyroid glands are underactive, a condition called hypoparathyroidism. It can contribute to low calcium levels. However, the interpretation depends on the calcium level and the individual's overall clinical condition.