Patient/caregiver was instructed upon mechanism of Parathyriod hormone secretion as follows:
- Parathyroid hormone is secreted by the chief cells of parathyroid glands, which are located in the vicinity of the thyroid gland in the neck.
- Parathyroid hormone mainly helps with regulation of calcium levels in the blood. This level needs to be closely regulated, as calcium in the blood plays a significant role in the optimal function of many organ systems, such as, heart, muscle, brain and nerves.
- Low calcium level in the blood stimulates increased secretion of parathyroid hormone by the chief cells of parathyroid gland. The secreted parathyroid hormone from the gland will bring on resorption of the bone and release calcium from the bone into the blood, thus restoring the level of calcium in the blood to optimum levels.
- When the calcium in the blood reaches optimum levels, the stimulus for increased secretion of parathyroid hormone is no more present and so, parathyroid hormone secretion is inhibited. This results in inhibition of bone resorption and reduced calcium release from the bone into the blood.
- This helps prevent excessive bone resorption, development of osteoporosis, and also prevents extreme elevation of calcium levels in the blood, which can seriously compromise the function of many vital organs in the body.
