Table 1.

Serum magnesium and calcium concentrations

Date:	9/11/08	11/11/08	3/12/08	29/12/08	9/1/09	16/1/09	9/7/09
Mg++ (mmol/l) NR: 0.7–1.0	0.23	1.32 post iv Mg	<0.08	<0.08	0.28	0.83	0.85
Corrected calcium (mmol/l) NR: 2.1–2.6	2.0	1.9	2.1	2.1	2.4		2.5

03/12/08: Na⁺ 141 mmol/l; K⁺ 3.9 mmol; urea 3.8 mmol/l; creatinine 97 μmol/l.

Parathyroid hormone: 2.7 pmol/l (NR 1.3–6.8).

09/01/09: Urine magnesium <0.2 mmol/l.

Urine Mg/creatinine ratio <0.03 mmol/mmol.

Urine creatinine 5.78 mmol/l.

NR, normal range.