II. Causes
- Common- Acute Blood loss or Hemorrhage
- Acute Hemolysis or Hemolytic Anemia
 
- Other causes- Microangiopathic Anemia
- Post-splenectomy
- Hemoglobinopathy
 
III. Labs
- Complete Blood Count
- Reticulocyte Index
- See Hemolytic Anemia for specific lab evaluation
