In a patient with UTI, LED (Cystine, Lactose Electrolyte Deficiency) Media is preferred over MacConkeys media because -: (A) It is differential medium, (B) In inhibits swarming of proteus, (C) Promotes growth of Pseudomonas, (D) Promotes growth of staph aureus and Candida
Answer is D. MacConkey agar: is mainly used to differentiate between various gram-negative rod-shaped organism. It also inhibits the growth of Gram-positive organism. Thus it is both differential and selective REF:Textbook of microbiology Ananthanarayan page no. 42