Table 1.
Admission blood tests and investigations
| Urea and electrolytes | Normal values | |
| Sodium | 148 mmol/L | 135–145 mmol/L |
| Potassium | 4.5 mmol/L | 3.5–5.3 mmol/L |
| Bicarbonate | 20 mmol/L | 22–29 mmol/L |
| Urea | 17.4 mmol/L | 2.5–7.5 mmol/L |
| Creatinine | 310 (baseline 86) mmol/L | 53–100 mmol/L |
| Estimated glomerular filtration rate | 12 mL/min/1.73 m2 | >60 mL/min/1.73 m2 |
| Full blood count | ||
| Haemoglobin | 107 g/L | 115–165 g/L |
| Mean cell volume | 78.2 fL | 85–105 fL |
| Platelets | 621×109/L | 150–400×109/L |
| White cell count | 9.4×109/L | 3.8– 11.0 x 109/L |
| Neutrophil count | 10.3×109/L | 2.0–7.5×109/L |
| C reactive protein | 9 mg/L | <5 mg/L |
| Liver function tests | Normal | |
| Albumin | 22 g/L | 35–50 g/L |
| Haemoglobin A1C | 45 mmol/L | <41 mmol/L |
| Hepatitis B, C, HIV | Negative | |
| Clotting | ||
| Prothrombin time | 10.3 s | |
| Activated partial thromboplastin time | 31.0 s | |
| Further biochemistry | ||
| Adjusted calcium | 2.31 mmol/L | 2.20–2.60 mmol/L |
| Phosphate | 1.52 mmol/L | 0.80–1.50 mmol/L |
| Renal screen | ||
| Anti-neutrophil cytoplasmic antibody | Negative | |
| Complement | Normal | |
| Anti-glomerular basement membrane antibody | Negative | |
| Anti-phospholipase A2 receptor antibody | Negative | |
| Myeloma screen | Negative | |
| Serum free kappa | 84.6 mg/L | 3.3–19.4 mg/L |
| Serum free lambda | 65.4 mg/L | 5.71–26.3 mg/L |
| Kappa:lambda ratio | 1.29 | 0.26–1.65 |
| Antinuclear antibody | Negative | |
| Anti-double-stranded DNA antibody | Negative | |
| Connective tissue disease screen | Negative | |
| IgG | 6.77 g/L | 6.13–13.0 g/L |
| IgA | 3.80 g/L | 0.4–3.5 g/L |
| IgM | 0.29 g/L | 0.53–3.34 g/L |
| Haematinics | ||
| Ferritin | 228 ng/L | |
| Transferrin saturation | 61% | |
| Iron | 17.2 | |
| Transferrin | 1.21 | |
| Total iron binding capacity | 28 | |
| Thyroid function tests | ||
| Thyroid-stimulating hormone | 92 | |
| T4 | 6.3 | |
| Urine studies | ||
| Total protein 24-hour urine | 18.2 g/24 hours | <0.15 g/24 hours |
| Albumin–creatinine ratio | 866.3 mg/mmol | <3.5 mg/mmol |
| Viral panel | ||
| Influenza A/B | Negative | |
| Respiratory syncytial virus | Negative | |
| COVID-19 PCR | Negative | |
| Venous blood gas | ||
| pH | 7.39 | 7.35–7.45 |
| Bicarbonate | 21 mmol/L | 25–30 mmol/L |
| Base excess | −3 mmol/L | |
| Lactate | 1.1 mmol/L | 0.5–2.0 mmol/L |