Match the Donors

Exam week or blood shortage news? Practice ABO/Rh compatibility under time pressure and build intuition that holds up when it matters.

Round —

Score 0

Streak 🔥 0

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Tap every donor type that can safely give to this recipient.

10 Rounds per game

20s Seconds per round

8 Donor types in grid

Your Records

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Best Score —

Best Streak —

Games Played —

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O- is the universal donor — compatible with every recipient.