Table 1. Pertinent laboratory data.
| Laboratory test | Initial presentation | Last clinic visit | Reference range |
|---|---|---|---|
| Hemoglobin | 7.1 gm/dL | 12.1 gm/dL | 12 – 16 |
| White blood cell count | 5,570 mm3 | 7,900 mm3 | 4,000 – 11,100 |
| Platelet count | 150,000 | 175,000 | 130,000 – 400,000 |
| Serum creatinine | 2.38 mg/dL | 1.1 mg/dL | 0.5 – 1.2 |
| Serum albumin | 3.4 gm/dL | 4.2 gm/dL | 3.5 – 5.7 |
| Spot urine protein to creatinine ratio | 4.3 g/g | Not done | |
| M-spike | 1.9 | Not observed | Not observed |
| κ | 15,770 mg/dL | 3.7 mg/dL | 0.33 – 1.94 |
| λ | 11.5 mg/dL | 1.8 mg/dL | 0.57 – 2.63 |
| κ/λ light chain ratio | 1,371 | 2.04 | 0.26 – 1.65 |