Patient With Lethargy and Hypercalcemia Ethan Bernstein, Danielle L. Saly, Asghar Rastegar  American Journal of Kidney Diseases  Volume 73, Issue 5, Pages A14-A16 (May 2019) DOI: 10.1053/j.ajkd.2018.06.035 Copyright © 2019 National Kidney Foundation, Inc. Terms and Conditions

Figure 1 Diagnostic algorithm for hypercalcemia. In general, this algorithm is useful; however, history and simple laboratory work may narrow the differential diagnosis to only a small portion of this diagnostic algorithm. Abbreviations: 25(OH)D, 25-hydroxyvitamin D; 1,25(OH)2D, 1,25-dihydroxyvitamin D; PTH, parathyroid hormone; PTHrp, parathyroid hormone–related peptide; SPEP, serum protein electrophoresis; UPEP, urine protein electrophoresis. American Journal of Kidney Diseases 2019 73, A14-A16DOI: (10.1053/j.ajkd.2018.06.035) Copyright © 2019 National Kidney Foundation, Inc. Terms and Conditions