Question

why is an untreated acute allergic reaction a life - threatening situation? vomiting and diarrhea may cause dehydration airway constriction may lead to low blood pressure and shock peripheral vasoconstriction elevates blood pressure none of the above

Explanation:

In an acute allergic reaction, airway constriction can be extremely dangerous. It can reduce the amount of oxygen entering the body, which in turn can lead to low blood pressure and shock, both of which are life - threatening. Vomiting and diarrhea causing dehydration is less immediately life - threatening in the context of an acute allergic reaction compared to airway issues. Peripheral vasoconstriction elevating blood pressure is not the main life - threatening aspect of an untreated acute allergic reaction.

Answer:

Airway constriction may lead to low blood pressure and shock