Abnormally High levels of Parathyroid Hormone due to Chronic Kidney Failure in Cats
 
The excessive secretion of parathyroid hormone (PTH) due to chronic kidney failure is medically referred to as secondary hyperparathyroidism. More specifically, the cause of secondary hyperparathyroidism is absolute or relative lack of calcitriol production -- a form of vitamin D that stimulates the absorption of calcium in the intestines, calcium resorption in bone, and promotes the effectiveness of the parathyroid hormone in aiding bone resorption. Low concentrations of calcium also play a role ...read more