Parathyroid Hormone (PTH)

This test is done to measure PTH, a hormone produced by the parathyroid glands that controls calcium and phosphorus balance in the body. It works with vitamin D to regulate bone health and mineral metabolism. Abnormal levels may indicate parathyroid disorders, calcium imbalance, kidney disease, or bone metabolism problems.

• No fasting is usually required.
• Inform your healthcare provider about calcium or vitamin D supplements.
• Blood sample is typically taken in the morning.
• Follow any instructions provided by the laboratory or healthcare provider.