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: Microbiology
[{'content': 'Most common, and most serious cause of infection by pseudomonas is seen in patients with \nSelect and explain. \nA. Burns, B. Neutropenia, C. Catheterization, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: → P.aeruginosa is pathogenic only indicated into areas devoid of normal defences e.g. when mucous membrane is disrupted, patient is catheterized, neutropenia is there.\n→ Most common, and most serious cause of infection is burns.\n→ Most common infection outside hospital is suppurative otitis media .\n→ Causative agent of shanghai fever.\n→ Produce blue pus, with characteristic fruity odour\xa0\n→ Pathognomonic skin lesions are called ecthyma gangrenosum, which occur singly or in small numbers on the perineum, buttocks, and extremities.\n→ Resistant to common antiseptic and disinfectants such as Dettol\xa0 in contrary, it may grow profusely in bottle of these antiseptic.', 'role': 'assistant'}]