You visit a piggery where a number of animals have died after showing severe respiratory signs. A lung sample is taken. Which media will be used to culture this sample?Select one alternative:Sheep blood agar, MacConkey agar and Chocolate agarSheep blood agar and MacConky agarSheep blood agar onlyChocolate agar only
Question
You visit a piggery where a number of animals have died after showing severe respiratory signs. A lung sample is taken. Which media will be used to culture this sample?Select one alternative:Sheep blood agar, MacConkey agar and Chocolate agarSheep blood agar and MacConky agarSheep blood agar onlyChocolate agar only
Solution
The best media to culture a lung sample, especially when dealing with respiratory issues, would be a combination of Sheep blood agar, MacConkey agar, and Chocolate agar.
Sheep blood agar is a general purpose medium that supports the growth of a wide range of bacteria. MacConkey agar is used for the isolation of gram-negative enteric bacteria and helps differentiate between lactose fermenters and non-lactose fermenters. Chocolate agar is a type of blood agar where the red blood cells have been lysed by heating. It is used for the isolation of fastidious organisms, such as respiratory bacteria.
Therefore, the correct answer is: Sheep blood agar, MacConkey agar, and Chocolate agar.
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