Table 1.

Initial laboratory tests.

Test	Result (reference range)
S. Na+	109 (135–145 mEq/L)
S. K+	7.9 (3.5–5 mEq/L)
S. Cl−	98 (98–106 mEq/L)
Blood sugar	6.7 (4.4–10 mmol/L)
Blood urea nitrogen	9.1 (0–3.3 mmol/L)
Serum creatinine	0.03 (0.02–0.06 mmol/L)
C‐reactive protein	Negative
Blood culture	Negative
Complete blood picture	Microcytic hypochromic anemia
Liver function test	Normal
Blood gas	pH = 7.2 (7.35–7.45), HCO3 = 10 mmol/L (18–22), PCO2 = 26 mmHg (25–40)
Serum cortisol	538 (171–535 nmol/L)
ACTH	0.4 (0.35–3 pmol/L)
Serum 17OHP*	1.8 (0.07–1.7 nmol/L)
S. aldosterone	2775 (111–860 pmol/L)
S. renin	4.2 (0.1–0.75 pmol/L)
Sweat test**	Sweat for chloride = 112.66 mmol/L (10–65)
	Sweat for sodium = 179.27 mmol/L (10–70)

*17OHP; 17-hydroxyprogesterone; **The test was done when the patient was stable.