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This blood test measures Parathyroid Hormone (PTH) levels. Parathyroid Hormone (PTH) is secreted by the parathyroid glands in response to a decrease in serum calcium levels by increasing the reabsorption of calcium by the kidneys and lowering the absorption of phosphorus.
Parathyroid hormone regulates the concentration of calcium and phosphorus in the blood and helps in the synthesis of Vitamin D. PTH is useful identifying and managing hypercalcemia.
Test Preparation For Optimal Results:
If possible, have the lab collected early in the morning or shortly after waking. For comparison purposes, have subsequent labs collected close to the same time.
Disclaimer: Your health care provider should evaluate a deviation from normal ranges.
This blood test is used to measure Adrenocorticotropic Hormone (ACTH) levels. ACTH levels are measured to help identify and monitor health conditions related to excessive or deficient cortisol in the body. Adrenocorticotropic hormone is one of four major adrenal cortical hormones and is produced by the anterior lobe of the pituitary gland. Adrenocorticotropic hormone stimulates the secretion of cortisone and aldosterone. Cholesterol is required for the production of all adrenal cortical hormones. Testosterone, estrogen, cortisol and aldosterone are all adrenal cortical hormones.
This blood test measures Dehydroepiandrosterone (DHEA) levels. DHEA a natural steroidal hormone made in the adrenal glands, gonads and in the brain. DHEA is a precursor hormone to cortisol, testosterone and estrogen and is the most plentiful steroid hormone in the body.
This blood test measures Sex Hormone-Binding Globulin levels. Sex Hormone-Binding Globulin is also known as SHGB and Testosterone-binding Globulin (TeBG). Sex Hormone Binding Globulin (SHBG) is under the positive control of estrogen and thyroid hormone and is suppressed by androgens. It also serves as a transport protein for thyroid and testosterone.
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