Platelet cross-match, platelet antibody screening and HPA genotyping results.
Tests | Results |
---|---|
Platelet antibody screening with baby’s serum | Positive |
Platelet antibody screening with mother’s serum | Positive |
Mother’s serum cross-matched with baby’s platelets | Incompatible |
Mother’s serum cross-matched with husband’s (father’s) platelets | Incompatible |
Baby’s serum cross-matched with father’s platelets | Incompatible |
Incompatibility % during platelet cross-matching: from day 1 to day 20 | 50% (8/16) |
Incompatibility % during platelet cross-matching: from day 21 to day 40 | 30% (6/20) |
Incompatibility % during platelet cross-matching: from day 41 to day 61 | 18.2% (4/22) |
HPA genotyping of baby and parents to detect HPA incompatibility in the baby | HPA-15b incompatibility detected in the baby |
Abbreviation: HPA, human platelet antigen.