PTH (34 - 84), PTH (37 - 84) |
Formed by the cleavage of PTH in the parathyroid gland, liver, and kidney |
Increased parathyroid gland secretion and levels in hypercalcemia |
Clearance mostly by glomerular filtration |
Levels elevated in renal failure |
Half-life is 20 to 40 minutes |
All fragments are metabolically inactive |