Blood Transfusion: Receiving Different Blood Types - Risks and Compatibility

Blood transfusions can use different blood types if compatibility is ensured. ABO system: A, B, AB, O (based on antigens). Rh factor: positive/negative.

Compatibility Guidelines

• Type A: receives A or O
• Type B: receives B or O
• Type AB: universal recipient (A, B, AB, O); preferably AB
• Type O: receives only O (lacks A/B antigens; causes severe reaction if given to A/B/AB)

Rh-negative recipients need Rh-negative blood to avoid antibody development. Medical professionals perform compatibility tests before transfusion to ensure safety.