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first responder vs. EMT

first responder
[furst ri-spon-der] / ˈfɜrst rɪˈspɒn dər /

noun

first responders plural

  1. a person who is certified to provide medical care in emergencies before more highly trained medical personnel arrive on the scene.

    a firefighter trained as a first responder.
EMT

  1. emergency medical technician: a person who is trained to give emergency medical care at the scene of an accident or in an ambulance.