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. 2022 Mar 6;7(5):1016–1026. doi: 10.1016/j.ekir.2022.02.022

Table 3.

Serum biochemical data

Serum levels Normal values
Serum calcium (mg/dl) 9.4 ± 0.4 8.5–10.3
Serum phosphorus (mg/dl) 3.5 ± 0.7 2.5–4.5
Serum albumin (g/dl) 3.7 ± 0.4 3.5–5.0
Vitamin D level (ng/ml) 31 (13–88) >30
iPTH (pg/ml) 49 (16–221) 14–66
BSAP (U/l) 22.12 (11.17–42.57) 18–75
TRAP-5b (U/l) 2.27 (1.34–6.81) 1.2–6.7
Intact FGF23 (pg/ml) 15.95 (3.20–45.40) N/A
c-Terminal FGF23 (pg/ml) 36.30 (12.20–914.6) N/A
Klotho (pg/ml) 329.0 (179.2–603.5) 239–1266
Sclerostin (pg/ml) 291.6 (84.10–781.5) 245–1182
Activin (μg/ml) 465.2 (219–896.5) 142–753

BSAP, bone-specific alkaline phosphatase; FGF, fibroblast growth factor; iPTH, intact parathyroid hormone; max, maximum; min, minimum; N/A, not applicable; TRAP, tartrate-resistant acid phosphatase.

Results presented as mean ± SD or median (min–max).