PARATHYROID HORMONE; PTH INTACT

What this test checks

Measures parathyroid hormone — controls blood calcium. Useful in calcium and bone disorders.

Why do people get this test?

Essential in evaluating high or low calcium, kidney stones, and bone disease.

When you should consider this test

• High or low blood calcium
• Recurrent kidney stones
• Bone disease work-up

How to prepare

Morning sample preferred.