Table 1.

Laboratory findings of the patient on admission and 1 week after admission.

Serum variables	On admission	One week after admission	Normal range
Calcium (mmol/L)	1.73	1.76	2.00–2.75
Phosphate (mmol/L)	1.81	2.19	0.80–1.60
Magnesium (mmol/L)	0.67	0.70	0.74–1.03
PTH (pg/mL)	–	9.40	15–68.30
Sodium valproate (mmol/L)	45	61.30	50–100

PTH = parathyroid hormone.