title: Use of red blood cells stored in saline suspension for immediate spin crossmatch.
abstract: The purpose of this study was to validate a procedure for using red blood cell suspensions stored for up to 10 days in an immediate spin crossmatch. Ten group A and 10 group B SAG-M donor unit segments were opened on day 0. The red cells were divided into 2 tubes and each diluted with saline to a 3% to 5% cell suspension. The cell suspensions were tested using a standard immediate spin technique against pooled group A, group B, and group O plasma each day for 10 days. One set of cells was stored refrigerated as a 3% to 5% cell suspension. Saline was removed from the parallel set of cells before storage. All 480 tests that were expected to be negative were negative. On 2 separate occasions 1+ or 2+ reactions that disappeared before the cell button was completely resuspended were noted. All 960 tests that were expected to be positive were positive. All but 4 results were graded as 3+ or 4+. Four 2+ reactions occurred with 2 units that were typed as A1 negative. Our results indicate that cells stored refrigerated in normal saline as a 3% to 5% cell suspension may be used for immediate spin crossmatch for up to 10 days.
authors.affiliation: Dynacare Kasper Medical Laboratories, #200 10150-102 Street, Edmonton, Alberta, Canada. lisa.denesiuk@dkml.com
authors.forename: Lisa
authors.initials: L
authors.lastname: Denesiuk
authors.forename: Gwen
authors.initials: G
authors.lastname: Clarke
mesh_terms: D000017:ABO Blood-Group System / Q000032:analysis*; D016913:Blood Component Transfusion / Q000379:methods; D001788:Blood Grouping and Crossmatching / Q000379:methods*; D001793:Blood Preservation / Q000379:methods*; D002170:Canada; D004912:Erythrocytes / Q000145:classification* / Q000502:physiology; D006801:Humans; D012965:Sodium Chloride; D013997:Time Factors
chemical_list: D000017:ABO Blood-Group System; D012965:Sodium Chloride