You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is A patient presents to the emergency depament with history of persistent fever & cough. Radiological features are suggestive of pneumonia. Sputum examination cultures reveal aerobic branching Gram positive filaments that are paially acid fast.Which of the following is the most likely etiological agent - and explain in detail?
Ans. is 'b' i.e., Nocardia asteroides . Information in this question are :? i) Aerobic organism. ii) Branching filament. iii) Gram positive iv) Paially acid fast v) Patient has pneumonia Among the given options only Nocardia asteroides is acid fast. Nocardia is strict aerobe, acid fast, Gram positive and branching beaded filamentous. Most common clinical manifestation of Nocardia is pneumonia.