This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pleural Effusion & Pneumothorax, Subject name: Medicine
[{'content': 'Pneumothorax - \nSelect and explain. \nA. Trachea shifted to opposite side, B. Dull, C. | breath sound, D. | TVF', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Trachea shifted to opposite side Clinical distinguishing features on clinical examination Tracheal deviation (Mediastinal shift)Chest expansionPercussion note | Duller| Hyper-resonantBreath sounds| Louder| SofterAdded soundsVocal resonanceConsolidationNoNormal, or decreaseNormal, or decreaseIncrease (Brochial)Coarse crackles +/- rubIncreaseWhisperingPectoriloquyLobar collapseYes (Towards collapse)DecreaseDecreaseDecreaseNoDecreasePleural effusionNoDecreaseDecrease (Stony dull)DecreaseOccasional rubDecreasePneumothoraxYes (Specially with tensionNormal or decreaseIncreaseDecreaseOccattonal clickDecrease", 'role': 'assistant'}]