Table 1. Patient’s laboratory studies on hospital admission.

Serum laboratory testing	Patient result	Reference range
Potassium	1.5 mEq/L	3.5–5.3 mEq/L
Bicarbonate	39 mEq/L	22–28 mEq/L
Cortisol, random	185 mcg/dL	10–20 mcg/dL
Adrenocorticotropic hormone	1,186 pg/mL	46 pg/mL
Aldosterone	4.7 ng/dL	≤23.2 ng/dL (supine)
Renin	<2.1 pg/mL	3.1–57.1 pg/mL
Aldosterone/renin ratio	2.2	0.1–3.7
Chromogranin	205 pg/mL	<160 pg/mL