INTACT WHOLE MOLECULE PARATHYROID HORMONE (PTH)

"This blood test measures the level of intact parathyroid hormone in your blood, which plays a key role in regulating calcium and phosphate balance. It is used to assess parathyroid gland function and helps investigate causes of abnormal calcium levels, bone disorders, kidney disease, and symptoms such as fatigue or bone pain.

Preparation: No fasting. High-dose biotin supplements may interfere; follow clinic advice."