Septooptic Dysplasia with an Associated Arachnoid Cyst

Table 1

Summary of pertinent lab values.

	Value	Units	Reference ranges
Free T4	9.0	pmol/L	7.7–22.5
TSH	3.4	μIU/mL	0.40–5.50
Ammonia	75	μmol/L	20–55
Total bilirubin	70.1	μmol/L	1.7–20.5
Direct bilirubin	25.7	μmol/L	1.7–3.4
Critical sample
Glucose	2.1	mmol/L	3.9–6.1
Cortisol	11.0	nmol/L	>
Growth hormone	3.2	μg/L	>
Insulin	0.7	pmol/L	<
Lactate	0.8	mmol/L	0.5–2.2
Free fatty acids	0.27	mmol/L	>
β-Hydroxybutyrate	0.12	mmol/L	>
Acylcarnitine profile	Normal
Serum amino acids	Normal
Urine organic acids	Normal
Glucagon stimulation test
+10 min Glucose	4.2	mmol/L
+20 min Glucose	5.1	mmol/L
+30 min Glucose	5.0	mmol/L

Levels expected during hypoglycemia.
Abnormal values are in bold.