Parathyroid Hormone Blood Test, from our experts to you.Dr Sam Rodgers MBBS, MRCGP
Chief Medical Officermeet our doctors
What is the parathyroid hormone?
The parathyroid hormone (PTH) is produced by a cluster of four small tiny glands which lie directly behind the thyroid glands. PTH regulates calcium levels in the blood, helping to increase levels when they are too low.
What happens if parathyroid hormone levels are high or low?
Too high or too low parathyroid hormone levels can affect bone and kidney health and vitamin D levels.
What does the parathyroid hormone do?
Parathyroid hormone regulates calcium levels by mobilising calcium into the blood from bone, enhancing the absorption of calcium from the small intestine and controlling the amount of calcium lost in the urine. Our test identifies any overactivity in the glands producing parathyroid hormone while helping to find the cause of abnormal blood calcium levels.