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Parathyroid Hormone (PTH)
Parathyroid hormone (PTH) is secreted by the parathyroid glands and acts to increase the concentration of calcium (Ca2+) in the blood. PTH acts upon parathyroid hormone receptors in three parts of the body:
1. Bone takes calcium out of the bones, making bones less dense.
2. Kidneys puts calcium back into the blood from urine.
3. Intestines increases calcium absorption from the gut.
The parathyroid hormone blood test is used in detecting parathyroid disease, detecting and monitoring other diseases of calcium homeostasis and is used for monitoring individuals undergoing renal dialysis.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions.