Which of the following findings is a sign, not a symptom?

You are teaching a class about drug-related emergencies, specifically opiate overdose. Which of the following statements made by students indicates an understanding of possible signs of opiate overdose?

a. "Only illegal narcotics can cause hallucinations, which may make the patient violent." b. "When assessing a patient, you must be alert for respiratory depression." c. "You should always ask patients if they have chest pain because narcotics increase the heart's workload." d. "You should always check the patient's pupils because they will be dilated in a narcotics overdose."

For coding purposes, which of the following is not a level of patient history? 

A. Problem-focused B. Expanded problem-focused C. Detailed D. Expanded detailed E. Comprehensive