ANZSBT/ARCBS consensus statement on use and allocation of Kell negative red cells

Scope

Recommendations

Clinical scenarios where K negative units are indicated (listed in priority order) include:

1. Any patient with (or a history of producing) anti-K
2. Transfusion of pregnant females or females of child bearing potential who have a K
negative phenotype (∼90% of women)
3. Transfusion of pregnant females or females of child bearing potential who are unable to be
phenotyped prior to transfusion. The clinical urgency of transfusion should be considered and
emergency transfusion should not be delayed by attempts to source K negative units. *
4. Patients who will be undergoing daratumumab therapy who are K negative or unable to be K
phenotyped (or genotyped)