2 MCQs in Microbiology for NEET PG
A 52-year-old man with diabetes mellitus presents to the emergency department with fever, dysuria, and flank pain. Urine culture grows a gram-negative bacillus that is oxidase-positive, motile, and produces a fruity odour in culture. The organism is resistant to cephalosporins and carbapenems. Which of the following is the most likely organism?
A 48-year-old man presents to the hospital with acute onset fever (39.2°C), productive cough with greenish sputum, and dyspnea. Chest X-ray shows bilateral lower lobe infiltrates. Sputum culture grows a Gram-negative bacillus that is oxidase-positive, non-motile, and produces a characteristic blue-green pigment on blood agar. Which of the following is the most likely organism?
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