Blood Type O Nursing Mnemonic


Universally Odd

  • U-Universal Donor
  • O-Only receive from O


Picture Type O as a huge circle, like the universe, because they are the universal donor. They can give to everyone. However, also think of them as the “odd man out” because they can only receive type O as well. They are universally odd, able to give to all but only receive from themselves!

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