The friend of a client brought to the emergency department states, “I guess she had some bad junk (heroin) today.” The client is drowsy and verbally nonresponsive. Which of the following assessment...

The friend of a client brought to the emergency department states, “I guess she had some bad junk (heroin) today.” The client is drowsy and verbally nonresponsive. Which of the following assessment findings is of immediate concern to the nurse?

1. Respiratory rate of 9 breaths/min.

2. Urinary retention.

3. Hypotension.

4. Reduced pupil size.