Blood Bag Expiration: Risks & Safety Guidelines

❌ NEVER use an expired blood bag.

Why Expiration Dates Exist

• Sterility assurance: Packaging integrity degrades over time.
• Anticoagulant/preservative efficacy: CPDA-1, CPD, additive solutions (AS-1, AS-3, AS-5) maintain RBC viability (2,3-DPG, ATP) and prevent clotting for a validated period (typically 35–42 days for RBCs).
• Bacterial growth risk: Microscopic defects → contamination → sepsis.
• Regulatory compliance: FDA, AABB, Joint Commission require strict adherence.

Consequences of Using Expired Bags

• Transfusion reaction (hemolytic, septic, allergic)
• Reduced oxygen delivery (low 2,3-DPG)
• Potassium overload (hemolysis)
• Legal/regulatory liability

Proper Handling

• Check expiration before every collection/transfusion.
• Rotate stock (FIFO).
• Discard expired bags per biohazard protocol.
• Document lot numbers, expiration dates in records.

Blood safety is non-negotiable. When in doubt, discard and obtain a fresh unit.