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Choice of ABO group of blood components to administer to a neonate ABO-compatible with the mother.
| ABO blood group of the neonate | ABO blood group that can be transfused | |||
|---|---|---|---|---|
|
| ||||
| Red blood cells | Platelets | Plasma | ||
| O | First choice | O | O | O |
| Second choice | - | AB or A or B | AB or A or B | |
|
| ||||
| A | First choice | A | A | A |
| Second choice | O | AB | AB | |
|
| ||||
| B | First choice | B | B | B |
| Second choice | O | AB | AB | |
|
| ||||
| AB | First choice | AB | AB | AB |
| Second choice | O or A or B | Plasma-free A or B | - | |
