ea0026s4.2 | Subclinical hormone excess | ECE2011
Cetani Filomena
The diagnosis of normocalcemic primary hyperparathyroidism (PHPT) can be made in subjects whose total and ionized serum calcium are completely normal but in whom the PTH level is persistently elevated. In order to make the diagnosis of normocalcemic PHPT, secondary causes for an elevated PTH level should be ruled out, such as vitamin D insufficiency, or renal insufficiency. Replacing the former patients with vitamin D to reach levels now considered to be normal (i.e. >30 n...