Question 1 of 10
Hematology
A 63-year-old nonsmoker with headaches and itching after warm showers has the results below. Which condition is MOST likely?
Results| Test | Result |
|---|
| Hemoglobin | 20.4 g/dL (204 g/L) |
| Hematocrit | 61% (0.61 L/L) |
| WBC | 12.8 ×10³/µL (12.8 ×10⁹/L) |
| Platelets | 640 ×10³/µL (640 ×10⁹/L) |
| Arterial O2 saturation | 97% |
| Serum erythropoietin | 1.2 mIU/mL (reference 4.0–20.0 mIU/mL) |