Table 1.
Initial laboratory findings
| Parameter | Value (reference range) |
|---|---|
| SCr (mg/dl) | 10.9 (0.6–1.2) |
| eGFR (ml/min/1.73 m2) | 5 (>90) |
| Serum urea nitrogen (mg/dl) | 72 (8–20) |
| Serum potassium (mmol/l) | 4.4 (3.5–5.5) |
| Serum uric acid (mg/dl) | 25 (3.8–8.0) |
| Serum phosphorus (mg/dl) | 9.7 (2.4–4.1) |
| Serum calcium (mg/dl) | 7.1 (8.5–10.2) |
| Serum albumin (g/dl) | 2.5 (3.5–5.1) |
| LDH (IU/l) | 1100 (140–280) |
| Hemoglobin (g/dl) | 9 (12.0–16.0) |
| WBC count (× 103/μl) | 67.4 (4.5–13.5) |
| Differential blood count (%) | |
| Neutrophils | 48 (40–70) |
| Monocytes | 39 (0–10) |
| Lymphocytes | 9 (20–50) |
| Eosinophils | 0 (0–6) |
| Urine dipstick protein | 3+ |
| Urine RBC (/hpf) | 21–30 (none)a |
| Urine WBC (/hpf) | 31–40 (0–2)a |
| Spot urine PCR (g/g) | 6.7 (<0.3) |
| Urine culture | No growth |
| C3 (mg/dl) | 124 (88–165) |
| C4 (mg/dl) | 37 (14–44) |
| ANA | Neg (neg) |
| MPO-ANCA | <1:20 (<1:20) |
| PR3-ANCA | <1:20 (<1:20) |
| Hepatitis C antibody | Neg (neg) |
| Anti-GBM antibody | Neg (neg) |
| Hepatitis B core antigen | Neg (neg) |
| Serum cryoglobulins | Neg (neg) |
| SPEP | No M-spike |
ANA, anti−nuclear antibody; ANCA, anti−neutrophil cytoplasmic antibody; anti-GBM, anti−glomerular basement membrane; eGFR, estimated glomerular filtration rate; hpf, high-power field; LDH, lactate dehydrogenase; MPO, myeloperoxidase; Neg, negative; PCR, protein:creatinine ratio; RBC, red blood cell; SCr, serum creatinine; SPEP, serum protein electrophoresis WBC, white blood cell.
Conversion factors for units: SCr in mg/dl to μmol/l, ×88.4; SUN in mg/dl to mmol/l, ×0.357.
a
Results obtained from Foley catheter−collected urine.