Table 1 Laboratory data at admission

 PH (7.35–7.45)

7.40

 Blood nitrogen (8–20 mg/dL)

13

 Creatinine (0.5–1.5 mg/dL)

0.7

 Na⁺ (133–145 mEq/L)

128^a

 K⁺ (3.3–5.1 mEq/L)

5.6^a

 Cl⁻ (96–108 mEq/L)

97

 Calcium (8.4–10.2 mg/dL)

9.4

 Phosphate (2.5–4.5 mg/dL)

3.7

 Magnesium (1.5–2.5 mg/dL)

2.2

 Osmolality (278–305 mOsm/kg. H2O)

265

 Cortisol (6.2–19.4 μg/dL)

4.65

 ACTH (5–77 pg/mL)

84.4

 Renin (15–57 pg/mL)

74.5

 Aldosterone (78–104 pg/mL)

22.24

 iPTH (15–65 pg/mL)

66.79

 TSH (0.35–4.94 μg/dL)

2.99

 ANA

80+ homogeneous

 Anti-ds DNA

20 × +

 K⁺ (mEq/L)

12

 Na⁺ (mEq/L)

56

 Cl⁻ (mEq/L)

44

 Creatinine (μg/dl)

21.1

 Osmolality (mOsm/kg H₂O)

215

 TTKG (<9^b)

2.64

 K⁺/Cr (mmol/mmol) (<15^b)

6.4