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Blood type

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Blood type is a variable in DayZ Standalone. Every player has distinct blood type which is randomly assigned each time they spawn. A players blood type affects his ability to donate or receive blood transfusion.

To perform a successful blood transfusion using a Blood Bag Kit, a donor's blood type must be compatible with the recipient's. Its imperative to check blood type compatibility before performing a blood bag transfusion, as transfusion with incompatible blood type will result in the fatal Hemolytic Reaction. When in doubt use a Saline transfusion.

The blood type can be determined by using a Blood Testing Kit and Syringe. Simply equip the kit in your hands and you can test either your own or another player's blood. All players involved must stay still, else the action will be cancelled. Possible blood types include O-, O+, A-, A+, B-, B+, AB-, AB+.

Blood Type Compatibility Table
Recipient Donor
O− O+ A− A+ B− B+ AB− AB+
O− Check.png Cross.png Cross.png Cross.png Cross.png Cross.png Cross.png Cross.png
O+ Check.png Check.png Cross.png Cross.png Cross.png Cross.png Cross.png Cross.png
A− Check.png Cross.png Check.png Cross.png Cross.png Cross.png Cross.png Cross.png
A+ Check.png Check.png Check.png Check.png Cross.png Cross.png Cross.png Cross.png
B− Check.png Cross.png Cross.png Cross.png Check.png Cross.png Cross.png Cross.png
B+ Check.png Check.png Cross.png Cross.png Check.png Check.png Cross.png Cross.png
AB− Check.png Cross.png Check.png Cross.png Check.png Cross.png Check.png Cross.png
AB+ Check.png Check.png Check.png Check.png Check.png Check.png Check.png Check.png
As a rule for memorization:
  1. O- is the universal donor, can donate to anyone without checking.
  2. AB+ is the universal recipient, can receive from anyone without checking.
  3. O can transfer to O, A, B or AB
  4. A can transfer to A or AB
  5. B can transfer to B or AB
  6. AB can only transfer to AB
  7. (-) can transfer to (-) or (+)
  8. (+) can only transfer to (+)