Table 1 Summary of laboratory investigations
Investigation | Result | Normal range |
|---|---|---|
Haemoglobin | 12 g/dL | 12.0–15.5 g/dL |
Platelets | 200,000 per microL | 150–450 per microL |
Serum investigations | ||
Sodium | 135 mmol/L | 135–145 mmol/L |
Potassium | 2.5 mmol/L | 3.5–5 mmol/L |
Magnesium | 1.8 mg/dL | 1.7–2.30 mg/dL |
Chloride | 91 mmol/L | 95–111 mmol/L |
Creatinine | 0.8 mg/dL | 0.6–1.2 mg/dL |
Arterial pH | 7.5 | 7.35–7.45 |
PaCO2 | 43 mmHg | 38–42 mmHg |
Bicarbonate | 28 mmol/L | 22–28 mmol/L |
Renin activity | 60.6 ng/mL/h | 5.4–34.5 ng/mL/h |
TSH | 3.872 mIU/L | 0.5 to 5.0 mIU/L |
Free T4 | 1.29 ng/dL | 0.9–2.3 ng/dL |
9 a.m. Serum cortisol | 550 nmol/L | 140 to 690 nmol/L |
Urinary investigations | ||
Urinary potassium | 40 mmol/L | < 20 mmol/L |
Urinary chloride | 64 mmol/L | 55–125 mmol/L |
Trans-Tubular Potassium Gradient (TTKG) | 13 | < 3 |
Spot urine potassium/creatinine ratio | 3.1 mmol/mmol | > 2 mmol/mmol |
Spot urine calcium/creatinine ratio | 0.01 g calcium /g creatinine | < 0.2 g calcium /g creatinine |