Table 1: Patient’s hematologic parameters.
| PCV (mL/dL) | Hemoglobin (g/dL) | RBC count (million/uL) | |
|---|---|---|---|
| On presentation | 48 | 16.6 | 5.6 |
| One year earlier | 42 | 14.5 | 4.8 |
| Normal range* | 42 ± 5 | 14 ± 2 | 4.8 ± 0.6 |
Other red blood cell parameters (mean corpuscular volume, mean corpuscular hemoglobin, and mean corpuscular hemoglobin concentration) were within normal limits. Modest elevations in PCV, hemoglobin, and red cell counts (as seen in this patient) are typical of Gaisbock’s syndrome. PCV (Packed Cell Volume). *Reference: [12]