Biopsy-proven acute phosphate nephropathy: A case report

Table 1 Relevant laboratory parameters at different time points

	Reference range	Day -90, baseline	Day 1, admission, and start of dialysis	Day 30	Day 90, follow-up
Urea nitrogen (mg/dL)	10-26	26	85	30	37
Creatinine (mg/dL)	0.7-1.4	1.68	12.85	7.32	7.84
Na (mmol/L)	135-145	-	133	139	133
K (mmol/L)	3.5-5.5	-	6.7	5.8	5.3
P (mg/dL)	2.5-4.5	4.5	11.2	6.1	4.3
Ca (mg/dL)	8.8-10.5	9.3	6.6	6.6	9.4
Mg (mg/dL)	1.5-2.0	-	1.6	-	-
Intact PTH (pg/mL)	152-6841	-	205	-	-
Albumin (g/dL)	3.3-5.2	4.0	3.3	2.3	3.2
pH	7.38-7.469	-	7.147	7.365	-
Bicarbonate (mmol/L)	21-29	-	11.8	25.1	-
Carbon dioxide (µmol/mol)	24-31	-	14	28	-

¹CKD Stage 3a-5 not on dialysis: Optimal PTH level is not known. CKD Stage 5 on dialysis: Approximately 2-9 times the upper limit of normal for the assay[12]. Na: Sodium; K: Potassium; P: Phosphorus; Ca: Calcium; Mg: Magnesium; PTH: Parathyroid hormone; CKD: Chronic kidney disease.