In a situation where a patient's heart isn't strong enough for surgery, why isn't it common for a doctor to give the patient epinephrine before the surgery? Do the effects of epinephrine not last long enough, or have potentially harmful effects in larger quantities?

Edit: Is it that the patient's blood flow is also increased when using epinephrine, making blood loss more significant?

  • As we used to say, we only give adrenaline to dead people, though I guess these days people have epipens. – Graham Chiu Jan 26 '18 at 1:05

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