why is an untreated acute allergic reaction a life - threatening situation?\nvomiting and diarrhea may cause…

why is an untreated acute allergic reaction a life - threatening situation?\nvomiting and diarrhea may cause dehydration\nairway constriction may lead to low blood pressure and shock\nperipheral vasoconstriction elevates blood pressure\nnone of the above
Answer
Brief Explanations:
An untreated acute allergic reaction can be life - threatening because vomiting and diarrhea can cause severe dehydration, and airway constriction can lead to low blood pressure and shock. Peripheral vasoconstriction is not a typical life - threatening consequence in the context of acute allergic reactions in the way described here.
Answer:
Vomiting and diarrhea may cause dehydration, Airway constriction may lead to low blood pressure and shock