Due to hostile conduct toward his fiancée, a 24-year-old man is transported to the emergency room by police and emergency medical services employees. He has no history of medical or psychological condition, according to her, and this conduct is new. The patient was aggressive and difficult to restrain throughout transport. He is anxious, disoriented, and bewildered right now, and he appears to be responding to internal stimuli. The temperature is 37.2 degrees Celsius (99 degrees Fahrenheit), the blood pressure is 170/96 mm Hg, the pulse rate is 118 beats per minute, and the respirations rate is 20 beats per minute. On the first neurologic examination, nystagmus and ataxia are observed. The patient refuses to participate in urine toxicology tests. After 8 hours at the emergency room, his symptoms begin to improve. He has no recall of what happened the night before. Which of the following substances is most likely causing the constellation of symptoms seen in this patient?

Question

Quizplus · Accepted Answer

Eductional Objective: The hallucinogen phencyclidine (PCP) induces dissociative symptoms, agitation, hallucinations, and aggressive conduct. Other defining signs of PCP misuse include ataxia, nystagmus, and memory loss.

Due to Hostile Conduct Toward His Fiancée, a 24-Year-Old Man