OVERVIEW:
What is an intact parathyroid hormone lab test?
An intact parathyroid hormone lab test is a blood test that measures the level of parathyroid hormone circulating in the blood.
Why is an intact parathyroid hormone lab test done?
An intact parathyroid hormone lab test is done in order to:
- Determine the cause of calcium imbalance,
- Evaluate parathyroid gland function,
- Diagnose and differentiate between primary, secondary, and tertiary hyperparathyroidism (overactive parathyroid glands),
- Diagnose hypoparathyroidism (underactive parathyroid glands),
- Confirm the removal of parathyroid gland(s) incase of hyperparathyroidism (overactive parathyroid glands).
What does an intact parathyroid hormone lab test measure?
An intact parathyroid hormone lab test measures the amount of parathyroid hormone circulating in the blood. Parathyroid hormone is produced by the parathyroid glands. Parathyroid hormone helps the body in maintaining stable levels of calcium in the blood.
Are there any risks associated with this test?
There are no known risks associated with this test.
How should I prepare for this test?
You doctor may advise you to stop taking certain medicines and supplements before the test.
What happens if parathyroid hormone is high?
A high parathyroid hormone level means more and more calcium is being released from your bones. Loss of calcium weakens the bones.
At what time of the day should I get my parathyroid hormone test done?
Mid-morning till late afternoon is the best time to get your parathyroid hormone test done.
Can I have an abnormal parathyroid hormone level without having symptoms?
Yes, if your calcium changes slowly, you may not have any symptoms.
Normal level of intact parathyroid hormone in blood is 10 - 65 pg/mL.
An intact parathyroid hormone lab test is done in order to:
- Determine the cause of calcium imbalance,
- Evaluate parathyroid gland function,
- Diagnose and differentiate between primary, secondary, and tertiary hyperparathyroidism (overactive parathyroid glands),
- Diagnose hypoparathyroidism (underactive parathyroid glands),
- Confirm the removal of parathyroid gland(s) in case of hyperparathyroidism (overactive parathyroid glands).