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: Radiology
[{'content': 'All are true about transvaginal USG except ? \nSelect and explain. \nA. Bladder should be full, B. Bladder should be empty, C. Consent is mandatory, D. None of the above', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is'a'i.e., Bladder should be fullTransvaginal sonography is best performed with an empty bladder, which enables the pelvic organs to reach a closer proximity to the tip of the high-frequency transvaginal probe.On the other hand, transabdominal sonography is done with fuIl bladder to get an overview of anatomy.", 'role': 'assistant'}]