Pediatrics Hemolytic anemia 9bd5c9e6 Ba's hydrops fetalis is lethal because: A Hb Ba's cannot bind oxygen B The excess a-globin form insoluble precipitates C Hb Ba's cannot release oxygen to fetal tissues D Microcytic red cells become trapped in the placental High-Yield Explanation Hb Ba: Most severe form of Alpha thalassemia As Hb Ba's consists of 4-gamma chains - have very high oxygen affinity Thus, it cannot release oxygen to fetal tissues.