• Lumisal@lemmy.world
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      2 days ago

      If it’s an emergency they’ll run O- because there isn’t time for that test, and if there’s no O- they’ll go based off info

      • dandelion (she/her)@lemmy.blahaj.zone
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        2 days ago

        ah, I didn’t know about this - it does look like O- is used (and sometimes O+ if risk assessment allows when O- blood is not available).

        I’m also reading there are rapid tests used in emergencies, too.