This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Drug Abuse, Subject name: Forensic Medicine
[{'content': 'Regarding alcoholic gaze nystagmus, which one of the following is false \nSelect and explain. \nA. It appears at blood alcohol levels of 50 - 100 mg %, B. Horizontal gaze nystagmus is pathognomic of alcohol intoxication, C. Positional alcohol nystagmus I occurs 30 minutes after ingestion, D. Positional alcohol nystagmus II occurs 5 - 6 hours after ingestion', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Alcoholic gaze nystagmus - It appears at blood alcohol levels of 50 - 100 mg % - Positional alcohol nystagmus I occurs 30 minutes after ingestion - Positional alcohol nystagmus II occurs 5 - 6 hours after ingestion - Horizontal gaze nystagmus is not pathognomic of alcohol intoxication, can occur in pathological conditions, ingestion of sedatives and transquillizers', 'role': 'assistant'}]