Parathyroid Hormone Test

A Parathyroid Hormone (PTH) test is a blood test that measures the level of PTH in your bloodstream. PTH is a hormone produced by the parathyroid glands, which are located in the neck. It plays a crucial role in regulating calcium levels in the body. This test is often used to diagnose and monitor conditions related to calcium metabolism, such as hyperparathyroidism or hypoparathyroidism.

The PTH test is important because it helps assess the functioning of your parathyroid glands and the balance of calcium in your body. Abnormal PTH levels can indicate various medical conditions, including primary hyperparathyroidism (excess PTH production), secondary hyperparathyroidism (response to low calcium levels), or hypoparathyroidism (insufficient PTH production). Early detection and monitoring of these conditions are vital for proper management and treatment.

Your doctor may recommend a PTH test if you exhibit symptoms of hypercalcemia (high blood calcium) or hypocalcemia (low blood calcium). Symptoms may include muscle weakness, bone pain, kidney stones, and more. Additionally, the test is performed in cases of suspected parathyroid disorders, osteoporosis, or as part of routine health assessments.

PTH test results are typically reported as the concentration of PTH in your blood. High PTH levels can suggest hyperparathyroidism, whereas low levels may indicate hypoparathyroidism. Your doctor will interpret the results alongside other tests and your medical history to determine the underlying cause and recommend appropriate treatment.