PTH-Related Protein Assays in Advanced Kidney Disease: Implications for Evaluation of Hypercalcemia

Table 1

Serum chemistries during the 3-month phase of hypercalcemia.

	12/6/20	1/7/21	2/4/21	2/7/21	2/27/21	3/4/21	3/9/21	3/11/21	3/16/21	4/8/21
Ca (mmol/L) normal 2.18–2.58	1.85	2.62	2.74		2.62	2.74	2.77	2.77	2.67	2.67
Phos (mmol/L) normal 0.81–1.45	1.26	1.65	2			1.71		1.65	1.81	1.48
25(OH)D normal 74.9–249.6								54.91
1,25(OH)2 (pmol/L) normal 50.4–156.0								<12
iPTH (pmol/L), C-terminal normal 1.6–9.3	1.59	<0.64	<0.64							<0.64
Albumin (mmol/L) normal 0.87–1.25	0.42								0.65
Light chain ratio									1.96
Ionized calcium (mmol/L) normal 1.05–1.3	0.29
PTHrP (pmol/L) normal 33.6–64.8									110.4