An 80-year-old female is noted to have an elevated WCC on routine bloods
An 80-year-old female is noted to have an elevated WCC on routine bloods. Her bloods plus historical results are available below:
| Now | One year ago | Reference | |
|---|---|---|---|
| Hb | 125 g/L | 130 g/L | (120-170 g/L) |
| WCC | 17 x 10⁹/L | 13 x 10⁹/L | (3.6-11 x 10⁹/L) |
| Platelets | 220 x 10⁹/L | 250 x 10⁹/L | (150-400 x 10⁹/L) |
| Neutrophils | 3.5 x 10⁹/L | 4.9 x 10⁹/L | (1.8-7.5 x 10⁹/L) |
| Lymphocytes | 12.0 x 10⁹/L | 6.0 x 10⁹/L | (1.0-4.0 x 10⁹/L) |
Which test should be performed to confirm the likely diagnosis?
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