Labs
Macrocytosis with a silent marrow
coreA 71-year-old vegetarian presents with fatigue and new numbness in both feet.
Results
| Test | Clinic bloodwork | Reference |
|---|---|---|
| Hb | 96L | 120–160 g/L |
| MCV | 116H | 80–100 fL |
| Retic | 12L | 20–100 ×10⁹/L |
| LDH | 520H | 125–220 U/L |
| B12 | 88L | 150–600 pmol/L |
| Plt | 128L | 150–400 ×10⁹/L |
Why is the LDH elevated here?