Table 1.

Laboratory evaluation at the National Institutes of Health

Laboratory test a	Value	Reference range
Initial presentation
Sodium (mmol/l)	135	136–145
Potassium (mmol/l)	5.1	3.4–5.1
24-h urine sodium (mmol/l)	110	40–220
Bicarbonate (mmol/l)	20	22–29
Plasma renin activity (ng/ml per h)	190	<0.6–4.3 b
Aldosterone (ng/dl)	2800	<21
Hemoglobin-A1c (%)	5.8	<6.5
Subsequent evaluation
Adrenocorticotropic hormone (pg/ml)	9.6	0.0–46.0
Compound S (ng/dl)	13.7	0.0–49.9
Insulin-like growth factor 1 (ng/ml)	76	115–307
Dehydroepiandrosterone (ng/dl)	155	0–599
Dehydroepiandrosterone sulfate (mcg/ml)	0.98	0.35–4.30
Androstenedione (ng/dl)	93	17–175
17-OH Progesterone (ng/dl)	49	3–175
Total testosterone (ng/dl)	<20.0	<81
Enhanced estradiol (pg/ml)	242.7	12–460
Progesterone (ng/ml)	1.1	0.2–1.5
Follicle stimulating hormone (U/l)	4.1	3–11
Luteinizing hormone (U/l)	5.3	1–12
Prolactin (mcg/l)	17.4	2.0–25.0
Sex hormone binding globulin (nmol/l)	75	18–114

All laboratory tests in serum.

^aIn serum, except where indicated.

^bIn sodium-replete individuals.