Crossmatches Immunohematology Review 465
EXPLANATION WHEN PERFORMED COMMENTS
Antiglobulin xmatch
Immediate spin (IS) xmatch
Computer (electronic) xmatch
Detects ABO incompatibility. Ab
screen carried through AHG must
be performed & must be neg.Detects ABO incompatibility. ABO
typing of recipient must be done
× 2. Ab screen carried through
AHG must be performed & must
be neg. Computer system must
be validated to prevent release of
ABO-incompatible blood & must
alert user to discrepancies &
incompatibilities.Recipient serum & donor
RBCs tested through AHGRecipient serum & donor
RBCs tested in IS onlyComputer check of donor
ABO & Rh type & recipient
ABO & Rh typeIf recipient has or had
clinically significant abIf recipient doesn’t have
& never had clinically
significant abIf recipient doesn’t have
& never had clinically
significant ab