Staph/Strep
The main difference between Staph and Strep...
Staph is catalase positive and Strep is catalase negative
What is something that is true for all members of the Enterobacteriaceae family?
They all ferment glucose.
Describe the environment these organisms prefer.
Wet environments such as sinks, respiratory/medical equipment, flower vases, or ice machines.
The word Vibrio means this....
To vibrate
Name the two factors required to grow Haemophilus.
X factor (hemin) and V factor (NAD)
This organism is Novobiocin suseptible.
What is Staph epidermidis?
What are the three sugars included in the triple sugar iron test?
Glucose, lactose, and sucrose
What are the two pigments Pseudomonas creates?
pyocyanin and pyoverdine
The most common Vibrio species reported in the U.S.
Vibrio parahaemolyticus
Describe satellitism
a phenomenon that occurs on BAP when Haemophilus is present with another organism that produces NAD, usually S. aureus. S. aureus releases X factor when hemolysis occurs allowing tiny colonies of Haemophilus to grow around the S. aureus.
Impetigo and Toxic Shock Syndrome are associated with these two organisms...
Staph aureus and Strep pyogenes
What species of Enterobacteriaceae grows best at room temp?
Yersinia
What are some infections Pseudomonas is known to cause?
UTIs, swimmer's ear, nosocomial respiratory infections,etc.
Known for its "seagull wing" appearance on a gram stain, this organism is commonly associated with consuming undercooked chicken....
Campylobacter
The largest concern with the HACEK group
Endocarditis
Which Lancefield group does Strep pyogenes belong to?
Group A
What species is the exception to the rule of oxidase negativity for this family?
Plesiomonas
The 3rd most common nonfermenting GNR
Stenotrophomonas maltophila
This organism is associated with gastric ulcers and gastric carcinoma.
Helicobacter pylori
What media is best for the recovery of gonorrhea?
Modified Thayer-Martin
What is the most likely identification of a gram-positive coccus, arranged in pairs, which is catalase negative, alpha-hemolytic, and optochin-sensitive?
What is Strep Pneumoniae?
Name the organism known for its purple/brick-red color on non-selective media.
Serratia
What is the TSI result of this group?
Usually K/K because they do not ferment glucose
What is the best way to distinguish between Campylobacter and Helicobacter
Urease production
What is the largest concern for N. meningitidis?
Meningitis/ Meningococcosemia