Diagnostic Microbiology — Flashcards

More than 90% of E. coli isolates are positive for the enzyme _____ which is tested using the MUG test

According to Ridley's logarithmic scale for bacterial index, _____ rating is 10-100 bacilli, on average, in each oil-immersion field

Gram Negative Algorithm:_____ are further split via whether or not there is maltose utilization

Hint: shape

_____ gram stains poorly, thus a silver stain is used to visualize the bacterium

Gram Negative Algorithm:Diplococci _____ maltose metabolism - Neisseria meningitidis

Hint: with or without

_____ is used to isolate Mycobacterium tuberculosis

Hint: Which special culture media/agar

_____ is used to isolate Mycoplasma pneumoniae, as it contains cholesterol necessary for growth

Hint: Which special culture media/agar

Gram Positive Algorithm:Staphylococcus Coagulase Negative Novobiocin _____ - Staphylococcus epidermidis

Which stain (other than Gram) is used to visualize Nocardia spp.?_____

Gram Negative Algorithm:Bacilli who are not lactose fermenters and are Oxidase Negative, H2S production on TSI agar _____ - Shigella, Yersinia