Evidence in Favor of a Severely Impaired Net Intestinal Calcium Absorption in Patients with (Early-Stage) Chronic Kidney Disease
American Journal of Nephrology, 04/23/2012
Viaene L et al. – The 24–hour urinary excretion of calcium, as opposed to phosphorus, is markedly decreased in chronic kidney disease (CKD), even in early–stage disease. This is partly explained by low calcitriol levels and older age. Assuming a neutral calcium balance at the time of urine collection, the authors infer that net intestinal calcium absorption may be severely impaired in CKD.