Table 1. Laboratory values obtained during the admission.

WBC: white blood cell count; BUN: blood urea nitrogen; ALT: alanine transaminase; AST: aspartate aminotransferase; NMO/AQP 4: anti-aquaporin-4 antibody

Blood Test	Value	Reference Range
Hemoglobin	12.8 g/dL	13-15 g/dL
WBC	10 k/cumm	4-11 k/cumm
Platelets	179 k/cumm	150-400 k/cumm
Serum creatinine	0.7 mg/dL	0.7-1.2 mg/dL
BUN	12 mg/dL	8-26 mg/dL
Serum sodium	139 mmol/L	135-145 mmol/L
Serum potassium	4 mmol/L	3.5-5.1 mmol/L
Serum calcium	9.6 mg/dL	8.4-10.3 mg/dL
Serum bicarbonate	25 mmol/L	22-29 mmol/L
Serum chloride	105 mmol/L	98-108 mmol/L
Magnesium	2.1 mg/dL	1.6-2.6 mg/dL
Phosphorus	3.5 mg/dL	2.3-4.7 mg/dL
ALT	20 U/L	<34 U/L
AST	16 U/L	<34 U/L
Alkaline phosphatase	53 U/L	35-150 U/L
Total bilirubin	0.7 mg/dL	0.2-1.2 mg/dL
Serum myelin oligodendrocyte glycoprotein (MOG) antibodies	Negative	Negative
Serum NMO/AQP4 antibodies	Negative	Negative