based on reports that aparathyroid animals exhibit suppressed plasma calcitriol concentration and that acute administration of parathyroid hormone ( pth ) to both humans and experimental animals or to renal slices in vitro results in increased plasma calcitriol concentration/production rate , it might be predicted that a chronic experimental model of either hypercalcemic primary hyperparathyroidism or hypocalcemic secondary hyperparathyroidism would show increased plasma calcitriol concentration .
C0020598
hypocalcemic
C0006674
calcitriol