One of the Effects of Heroin, Many Painkillers, and Other

Multiple Choice

One of the effects of heroin, many painkillers, and other opiate drugs is an increase in parasympathetic nervous system activation. If a patient comes into the emergency room and the doctor suspects he or she is under the influence of heroin, what simple physical symptom is the doctor likely to look for?

A) Cold, clammy hands
B) Very small pupils
C) Pale skin
D) Rapid breathing