ABO/Rh blood-product compatibility quick-check
ABO/Rh blood-product compatibility (AABB 33rd ed): from the recipient ABO/Rh type and the product (PRBC, FFP/plasma, platelets, cryoprecipitate), returns the compatible donor types and the emergency-release option.
Open the tool → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Recipient ABO / Rh
- O negative
- Product type
- PRBC (packed red blood cells)
Result: PRBC compatibility for O- per AABB 33rd ed: O-. Emergency release: O-negative.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- PRBC
- ABO and Rh both matter; O- is the universal emergency-release donor.
- FFP / plasma
- ABO only (Rh is not a plasma compatibility factor); AB plasma is the universal emergency-release donor.
- Platelets
- ABO-identical preferred; ABO-compatible plasma acceptable; Rh matching for Rh-negative women of CBP.
- Cryoprecipitate
- Any ABO acceptable (small residual plasma volume).
What you enter
- Recipient ABO / Rh
- Product type
How this is calculated
American Association of Blood Banks (AABB) / Association for the Advancement of Blood & Biotherapies. Standards for Blood Banks and Transfusion Services. 33rd ed., 2024. AABB Technical Manual, 20th ed., 2020.
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.