The focus of this review is to provide a perspective on the applicatio
ns and advantages of dynamic testing of parathyroid gland function in
the dialysis patient. This review will: 1) consider the clinical utili
ty of dynamic testing of the parathyroid gland and how the application
of the information obtained with this testing can provide a better un
derstanding of the physiology of parathyroid gland secretion in uremia
; and 2) attempt to reconcile some of the different methodologies whic
h have been used to evaluate the set point of calcium and the slope of
the PTH-calcium curve. It will offer our interpretation of the meanin
g of the set point of calcium, a term which, in our opinion, has gener
ated considerable confusion with respect to dynamic testing of the par
athyroid gland.