Compatibility Testing and Crossmatch

This technical topic delves into the laboratory procedures of compatibility testing, including the Type and Screen (T&S) strategy and the full crossmatch. Essential for tertiary students in medical laboratory science programs in Zambia, it outlines the step-by-step methodologies for performing saline (immediate spin) and albumin/enzyme-enhanced crossmatches at various phases (IS, 37°C, AHG). The module explains the rationale behind the T&S strategy and the specific patient populations that still require a full crossmatch. Students will also learn how to grade and interpret agglutination reactions. Proficiency in these techniques is fundamental for preventing incompatible transfusions, identifying clinically significant antibodies, and ensuring the highest standard of pre-transfusion testing. This hands-on knowledge is a cornerstone of the professional skill set for laboratory technologists and forms a significant component of practical assessments in diploma and degree courses.