Give information about Fetal hemoglobin stain (alt name? ingredients? rxn? for?)
- Kleihauer stain
- Citric acid - phosphate buffer
- Acid hematoxylin
- Primary rxn: non-F hgB such as Hgb A are dissolved and eluted from cell. Hgb F is acid resistant, remains in cell, and stains red
- Other cells appear as "ghost cells"
- *acid elution test for Hgb F