This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
[{'content': 'Shortest acting benzodiazepine is: \nSelect and explain. \nA. Midazolam, B. Alprazolam, C. Lorazepam, D. Diazepam', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Because of its short\xa0duration\xa0of action, midazolam\xa0is the\xa0only\xa0BZD\xa0suitable\xa0for\xa0sedation of intubated and\xa0mechanically\xa0ventilated\xa0 patients.\nMidazolam is a good amnesic with potent and shorter lasting action.\xa0It\xa0is also better suited\xa0for i.v.\xa0injection, due\xa0to\xa0water solubility. This\xa0BZD\xa0is water\xa0soluble,\xa0non-irritating\xa0to\xa0veins, shorter\xa0acting (t½\xa0: 2\xa0hours)\xa0and\xa03\xa0times more\xa0potent\xa0than diazepam.\xa0\nSTOLE\nS - Short acting Benzodiazepines are,\nT - Triazolam\nT - Temazepam\nO - Oxazepam\nE - Estazolam', 'role': 'assistant'}]