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Med Micro Block Test I preliminary identification
bacteria - preliminary identification
37
Microbiology
Professional
03/31/2011

Additional Microbiology Flashcards

 


 

Cards

Term
Staphylococcus aureus
Definition

clusters

catalase and coagulase positive

ferments mannitol

antibiotic resistant (MRSA)

Gram-positive

cocci

Term
Staphylococcus epidermitis
Definition

forms clusters

non-hemolytic

catalase positive

coagulase negative

does not ferment mannitol

Term
staphylococcus saprophyticus
Definition

clusters

catalase positive

coagulase negative

doesn't ferment mannitol

novobiocin resistant

 

Term
streptococcus pyogenes
Definition

long chains

beta hemolysis

catalase-negative

group A

PYR-positive

bacitracin sensitive

Term
streptococcus agalactiae
Definition

long chains

beta hemolysis

catalase-negative

group B

bacitracin resistant

CAMP test positive

 

Term
streptococcus pneumoniae
Definition

in pairs (diplococci)

alpha-hemolytic

catalase-negative

soluble in bile

optochin sensitive

 

Term
enterococcus spp.
Definition

in prs/short chains

alpha or gamma-hemolytic

catalase-negative

bile and antibiotic resistant

 

Term
Bacillus anthracis
Definition

spores

non-motile

non-hemolytic

string of pearl

unique capsule

medusa head colony

 

Term
Bacillus cereus
Definition

spore forming rod

motile and hemolytic

emetic and diarrheal toxins

Term
Clostridium perfringens
Definition

box-shaped anaerobic rods (form spores)

rapid growth

Nagler reaction

 

Term
corynebacterium diphtheriae
Definition

pleomorphic rod

dark pharyngeal pseudomembrane

 

Term

Listeria monocytogenes

 

Definition

small rod (coccobacilli)

characteristic (tumbling) motility

 

Term
Actinomyces israelii
Definition

Anaerobic and branching rod

molar tooth appearing in 7 to 10 d

sulfur granules

Term
Nocardia spp
Definition

weakly acid-fast

filamentous

branching rods

slow growth

fuzzy colonies (aerial hyphae)

 

Term

Mycobacterium tuberculosis

 

Definition

strongly acid-fast rods

slow growth

non-pigmented colonies

Mantoux and QFT-G tests

 

Term
Neisseria meningitidis
Definition

diplococci

fastidious (grow on chocolate agar)

ferments glucose and maltose

 

Term
Neisseria gonorrhoeae
Definition

Diplococci (in PMNs)

fastidious

grow on Thayer-Martin agar

ferments glucose and maltose

 

Term
Moraxella catarrhalis
Definition

Diplococci

fastidious

ferments neither glucose nor maltose

 

Term

Acinetobacter spp.

 

Definition

fat rods in pairs (may seem cocci)

grow on MacConkey

oxidase negative

 

Term
Enterobacteriaceae
Definition

gram-negative rods with "bipolar" staining

grow on MacConkey agar

may or may not ferment lactose

all of these species are oxidase negative

species include: E. coli, Salmonella, Shigella, Yersinia, Proteus, etc

 

Term
Bacteroides, Fusobacterium
Definition

weakly staining anaerobic rod

 

Term
Pseudomonas aeruginosa
Definition

green colonies

grapelike smell

grow on MacConkey (non-fermenters)

oxidase positive

 

Term
Vibrio cholerae
Definition

curved rod

ferments sucrose

thiosulphate citrate bile salt sucrose agar

Term
Helicobacter pylori
Definition

curved rods

urea breath test

 

Term
Campylobacter spp.
Definition

thin, curved, S-shaped rods

growth only on highly selective media

 

Term

Haemophilus spp.

 

Definition

small coccobacilli

X and V factor

satellite phenomenon

oxidase positive

 

Term

Legionella spp.

 

Definition

weak staining Gram-negative rods

buffered charcol yeast extract (BCYE)

agar with cysteine

Term
Bordetella pertussis
Definition

small, gram-negative bacilli

fastidious

Regan-Lowe charcoal agar

use dacron swabs

 

Term

Brucella spp.

 

Definition

Very small (coccobacilli)

slow growing

antigens cross react with Francisella

 

Term

Francisella spp.

 

Definition

very small coccobacilli

slow-growing

biohazard

antigens cross react with Brucella

 

Term
Treponema pallidum
Definition

Gram negative spirochete (not cultured yet)

RPR and VDRL tests

 

Term
Borrelia burgdorferi and Leptospira spp.
Definition
serology
Term
Gram-positive cocci
Definition

staphylococcus aureus

staphylococcus epidermidis

staphylococcus saprophyticus

streptococcus pyogenes

streptococcus agalactiae

streptococcus pneumoniae

enterococcus spp.

 

Term
Gram positive rods
Definition

Bacillus anthracis

Bacillus cereus

Clostridium perfringens

Corynebacterium diphtheriae

Listeria monocytogenes

Actinomyces israelii

Term
Acid-fast rods
Definition

Nocardia spp

Mycobacterium tuberculosis

Term
Gram-negative cocci
Definition

Neisseria meningitidis

Neisseria gonorrhoeae

Moraxella catarrhalis

Acinetobacter spp.

Term
Gram negative rods
Definition
everything that's not one of the other four.
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