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': 'In a patient with UTI, CLED (Cystine, Lactose Electrolyte Deficient) Media is preferred over MacConkey media because - \nSelect and explain. \nA. It is a differential medium, B. It inhibits swarming of Proteus, C. Promotes growth of Pseudomonas, D. Promotes growth of staph aureus and Candida', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Lactose Electrolyte efficient ( CLED) Media\n\nCLED agar is a non- selective differential plating media for the growth and enumeration of urinary tract microorganisms.\n\nIt contains\xa0\n\nLactose\nCasein peptone\nGelatin peptone\nBeef extract\nL - cysteine\nBromothymol blue\nAgar\nOmitting sodium chloride (electrolyte deficient) inhibits the proteus swarming and supports the growth of a great majority of bacteria causing urinary tract infections and as used to differentiate and identify them.\n\nSimilarities, between CLED Media & MacConkeys Medium \n\nBoth are differential media\nBoth MacConkey and CLED media differentiates between lactose fermenting & non lactose fermenting\nBoth CLED MaConkey media inhibits swarming of proteus\nBoth show greenish colour, matt surface & rough periphery of Pseudomonas colonies\nCLED media is preferred over MacConkey\'s for the culture of coliform and other bacteria from infected urine because -\nIt has the advantage of supporting the growth of certain Staphylococcus, Streptococci and Candida strain."\xa0- Macon & Macgregor, 13th/e', 'role': 'assistant'}]