A doctor is in an emergency situation where a person needs blood so badly that she will die if she doesn’t receive a transfusion. Assume these things: The patient is unable to communicate her blood...

A doctor is in an emergency situation where a person needs blood so badly that she will die if she doesn’t receive a transfusion. Assume these things:

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  The patient is unable to communicate her blood type to the doctor

  
  


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  The doctor does NOT have access to a blood typing test

  
  


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  The doctor DOES have access to transfusion supplies, including an IV

  
  

  catheter and a bag of blood with unknown type

  
  


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  17.
  How might blood compatibility be determined in this scenario? Did you save all the patients?