Table 4.

Biochemical indices during pregnancy^a

	Month
	1	2	3	4	5	6	7	8	9
Hemoglobin (g/L)	117 ± 14	104 ± 20	109 ± 14	107 ± 8	110 ± 10	112 ± 16	110 ± 13	107 ± 18	114 ± 8
Erythropoietin (units/wk)	15,667 ± 12,291	18,000 ± 10,954b	21,800 ± 19,212b	26,000 ± 17,978b	29,000 ± 16,186b	28,667 ± 15,680b	29,333 ± 16,281	42,800 ± 43,441b	23,333 ± 7024b
IV iron (mg/wk)	50 ± 50	75 ± 79	65 ± 78	75 ± 79	75 ± 79	69 ± 78	66 ± 80	82 ± 81	100 ± 0
Dialysate sodium phosphate concentration (mmol/L)	0.53 ± 0.57	0.68 ± 0.43	0.58 ± 0.42	0.61 ± 0.47	0.75 ± 0.56	0.75 ± 0.78	1.1 ± 0.71b	1.0 ± 0.81b	0.57 ± 0.30
Predialysis phosphate concentration (mmol/L)	1.1 ± 0.4	0.8 ± 0.3	1.2 ± 0.7	1.0 ± 0.3	1.0 ± 0.3	1.0 ± 0.4	0.9 ± 0.4	1.1 ± 0.4	1.3 ± 0.3
Postdialysis phosphate concentration (mmol/L)	0.8 ± 0.3	0.8 ± 0.4	1.2 ± 0.7	0.9 ± 0.5	0.7 ± 0.2	0.8 ± 0.4	0.8 ± 0.2	0.8 ± 0.1	0.9 ± 0.2
Predialysis calcium concentration (mmol/L)	2.5 ± 0.1	2.4 ± 0.1	2.4 ± 0.1	2.4 ± 0.2	2.4 ± 0.1	2.5 ± 0.1	2.4 ± 0.1	2.4 ± 0.2	2.5 ± 0.2
Postdialysis calcium concentration (mmol/L)	2.7 ± 0.1	2.6 ± 0.2	2.6 ± 0.1	2.5 ± 0.1	2.6 ± 0.1	2.6 ± 0.1	2.5 ± 0.1	2.6 ± 0.2	2.5 ± 0.1
Predialysis BUN (mmol/L)	14.0 ± 11	11.5 ± 8	12.0 ± 8	10.3 ± 9	7.6 ± 3b	10.0 ± 7b	8.5 ± 6b	8.0 ± 4b	8.0 ± 4b
Postdialysis BUN (mmol/L)	2.3 ± 2.4	3.2 ± 4.6	1.7 ± 1.4	1.6 ± 1.6	1.0 ± 0.4	1.0 ± 0.5	1.1 ± 1.3	1.3 ± 0.7	1.3 ± 0.7
Albumin (g/L)	38 ± 3	36 ± 3	35 ± 2	35 ± 3	33 ± 3	32 ± 3b	30 ± 3b	29 ± 2b	28 ± 2b

^aIV, intravenous; BUN, blood urea nitrogen.

^bP < 0.05 compared with baseline.