Why is epinephrine used to treat cardiac arrest and status asthmaticus?

Bronchodilation and increased heart rate. contractility. and conduction

Bronchodilation results from stimulated beta receptors. and cardiac effects result from the stimulation of 1 receptors. Choice A does not address respiratory effects of medication. Choice C is incorrect because ?-stimulating drugs cause vasoconstriction. Bronchodilation. not bronchoconstriction. results from 2 activity.