Here are 10 commonly isolated organisms seen in the lab. Make an
algorithm of testing that can be used to separate each organism.
Use first gram stain characteristics and shapes. As appropriate,
use tests such as catalase and coagulase, hemolysis, and the other
tests to separate out the gram positives. For the gram negatives
start with growth on MacConkey media, and then oxidase and indole
reactions.

Staphylococcus
saprophyticus

Coagulase Negative Staphylococci

Enterococcus faecium

Moraxella catarrhalis

Neisseria gonorrhea

Neisseria meningitidis

Serratia marcescens

Acinetobacter baumanni

Stenotrophomonas
maltophilia

Burkholderia cepacia