Anaerobes Flashcards
indicator in anaerobe jar
impregnated with methylene blue
blue = presence of oxygen
colorless = anaerobic conditions exist
what is PRAS
Prereduced anaerobically sterilized
Fusobacterium and C. diff present which color under the UV light?
Chartreuse green
Gram stain is positive, but no growth on culture. what could be the reason?
patient in antibiotics
wrong plate
no anaerobic condition
Disc pattern for Bacteroides
Colistin R
Kanamycin R
Vancomycin R
Disc pattern for Prevotella
Colistin S
Kanamycin R
Vancomycin R
Disc pattern for Porphyromonas
Colistin R
Kanamycin R
Vancomycin S
Disc pattern for Fusobacterium
Colistin S
Kanamycin S
Vancomycin R
Disc pattern for Capnocytophaga
Colistin S
Kanamycin S
Vancomycin R
what organisms are positive for Nagler test?
C. perfringens
C. sordelli
C. bifermantens
C. barati
Indole is detected by
p-dimethylaminocinnamaldehyde to produce blue-green color
what organisms are positive for Indole
Cutibacterium acne (P.acne)
Peptostreptococcus asaccharolyticus
what organism gives false negative indole?
Clostridiums
gram stain, disc pattern, and nitrate for Veillonella
GNC
Colistin S
Kanamycin S
Vancomycin R
Nitrate +
Usual disc pattern for GP organisms
Colistin R
Vancomycin S
Disc pattern for P. asaccharolyticus
Colistin R
Kanamycin S
Vancomycin S
Disc pattern for P. anaerobius
Colistin R
Kanamycin R
Vancomycin S
Media used for C. diff
CCFA
Cycloserine-Cefoxitin Fructose Agar
What are the aerotolerant organisms
C. histolyticum
C. teritum
P. acne
What organism has sulfur granules and have molar tooth colony morphology?
Actinomyces
What is GNC anaerobes
Veillonella
Microaerophilic anaerobe GNR?
Capnocytophaga
dog bone or forked end morphology
Bifidobacterium
which organism causes pseudomembranous colitis and antibiotic-associated diarrhea
C. diff
What are anaerobe GPC
Peptostreptococcus
GPR
chain
catalase -
Lactobacillus
GPR
curved
aerotolerant
catalase +
indole +
P. acne
Swarmer Clostridiums
C. septicum
C. tetani
GPR
tennis racket shapes
potent neurotoxins (neuroparalytic disease)
C. botulinum
Double zone hemolysis
alpha exotoxin
gas gangrene
motility -
C. perfringens
what organisms gives brick red fluorescence under the UV light
Prevotella
Porphyromonas
Veillonella
Lactobacillus resembles
C. tertium
Fusobacterium clinical disease
necrotizing faciitis
potent neurotoxin (neuroparalytic disease)
non-acidic vegetables, mushrooms, canned food, honey
C. botulinum
GNR anaerobes
Growth on BBE/LKV (black pigment on BBE)
Disc pattern RRR
causes pelvic inflammation
Bacteroides fragilis
which media does Mycoplasma pneumoniae grow, gives what morphology, and clinical disease?
PPLO (pleural pneumonia-like organism) agar
spherical, grainy
Walking pneumonia
which media does Mycoplasma hominis grow, gives what morphology, and inhabits?
A8 media
Fried egg morphology
inhabits the vagina, but can cause urethritis
Which media does Ureaplasma urealyticum grow, gives what morphology, and found in?
A8 media
Very tiny colonies
normal flora in vagina, but can cause urethritis and infertility
what organism causes trisma?
Lock jaw
C. tetani