Culture Media
This selective medium is used to isolate pathogenic Neisseria species.
What is Modified Thayer Martin agar?
Gram-positive cocci in clusters
What is Staphylococcus?
A blood culture grows catalase-positive, coagulase-negative cocci that are novobiocin susceptible from a patient with a prosthetic heart valve.
What is Staphylococcus epidermidis?
This species is novobiocin resistant.
What is Staphylococcus saprophyticus?
All Enterobacteriaceae ferment which sugar?
What is glucose?
This enriched medium supplies X and V factors.
What is Chocolate agar?
Gram-positive cocci in chains
What is Streptococcus?
A college freshman presents with meningitis. CSF reveals oxidase-positive Gram-negative diplococci that ferment glucose and maltose.
What is Neisseria meningitidis?
This alpha-hemolytic organism is optochin susceptible.
What is Streptococcus pneumoniae?
KIA results: A/A, gas +, no H₂S. Which organism?
What is E. Coli?
This medium (abbreviation only) produces a metallic green sheen for one lactose fermenter.
What is EMB?
Kidney bean-shaped intracellular Gram-negative diplococci
What is Neisseria gonorrhoeae?
Which Staphylococcus species is most associated with toxic shock syndrome?
What is Staphylococcus aureus?
This enzyme identifies Staphylococcus aureus.
What is coagulase?
This species swarms.
What is Proteus?
This selective medium (abbreviation only) grows Legionella pneumophila.
What is BCYE?
Sputum Gram Stain with > 20 epithelial cells, acceptable: Yes or No?
What is no?
A patient has kidney stones. The isolate swarms and is urease and H2S positive but indole negative.
What is Proteus mirabilis?
This species grows in 6.5% NaCl and hydrolyzes bile esculin.
What is Enterococcus?
This organism produces H₂S and black colonies on HE agar.
What is Salmonella?
Name TWO organisms commonly isolated on Hektoen Enteric (HE) agar.
What are Salmonella and Shigella?
Curved Gram-negative rods from stool culture
What is Campylobacter jejuni?
Neonate blood culture shows a beta-hemolytic, CAMP positive, catalase negative organism.
What is Group B strep?
This sugar differentiates a GPC that hydrolyzes bile esculin and grows in 6/5% NaCl.
Arabinose
This lactose fermenter is nonmotile and appears mucoid on a MAC agar.
What is Klebsiella pneumoniae?