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40 Cards in this Set

  • Front
  • Back
Jembec plate
MTM for Neisseria gonnorheae
Enterobacteriaceae
GNR
Oxidase negative
Ferment Glucose
Reduce nitrate to nitrite

TSI - Salmonella typhi
TSI - Salmonella sp.
TSI - Shigella
TSI - Proteus vulgaris
TSI - Proteus mirabilis
TSI - Klebsiella
TSI - E. coli

K/A no gas, H2S+/- no urea
K/A, gas, H2S pos no urea
K/A, no gas, no H2S no urea
K(or)A/A, gas H2S Pos UREA
K/A, gas, H2S pos UREA
A(or)K, gas, H2S neg UREA
A/K, +/- gas, no H2S no urea

Haemophilus influenzae
Haemophilus parainfluenzae
Haemophilus hemolyticus
Needs XV, -ALA
Needs V, +ALA
Needs XV, +ALA, hemolysis on quad
Beta lactamase Test
Nitrocefin disk (cephalosporin)
Positive: pink red
Negative: no color change
X & V Requirements Test
X factor: hemin
V factor: NAD
DNase
Positive= clearing Staphlylococcus aureus
Negative =
Novobiocin susceptibility test
S. saprophyticus = resistant = no zone of inhibition
CNS/ S. aureus = sensitive = 16 mm zone or larger
Staph identification tests
Catalase, DNase, Coagulase, novobiocin, Staphurex
Streptococcus identification tests
Catalase, Bile esculin, sodium chloride tolerance, Camp, Spot CAMP, Optochin, Bile solubility, Bacitracin, Hippurate hydrolysis, PYR, latex
Camp
Positive (arrow) = Group B Strep
negative = Group A strep
Optochin susceptibility test (P disc)
Selectively inhibits the growth of S. pneumoniae
Positive (zone) = Strep. pneumo
negative (no zone) = Strep viridans
Bile solubility
Disappearance of the tested colonies - hydrolyzed area
Positive = S. pneumoniae
Bacitracin susceptibility test
Positive (zone) = group A Beta hemolytic Strep
negative (no zone) = non-Group A Beta hemolytic Strep
Hippurate Hydrolysis
Enzyme hippuicase hydrolyses Na hippurate to benzoic acid and glycine
Positive (Purple) = Group B Strep, (gardnerella vaginalis, campy)
Negative (clear) = Group A Strep
Plate CAMP Test
Hemolytic activity of S. aureus is enhanced by extracellular protein produced by Beta Strep Group B
Arrow = Beta Strep GroupB
No arrow = Beta Strep group A
Neisseria gonorrhoeae
Neisseria meningitidis
Moraxella
Growth on MTM/Choc
Diplococci
Oxidase +
Throat
Urine
sputum
wound
Beta Strep A
S. aureus, S. sapro, E. faecalis, Enterobacteriaceae
S. pneumo, Pseudomonas, Haemophilus, Neisseria
Anything
Gram Positive Bacilli
Listeria monocytogenes
Erysipelothrix rhusiopathiae
Corynebacterium diphtheriae
Bacillus sp.
Lactobacillus sp.
Listeria spp. tests (GPB)
Bile - esculin

Catalase
Tumbling motility (@ RT)


Narrow zone of hemolysis

Catalase + GPR

(4)

Listeria monocytogenes
Erysipelothrix rhusiopathiae
Corynebacterium diphtheriae
Bacillus spp.
Hydrogen Sulfide Production
H2S reacts with iron salks to produce black precipitate ferric sulfide

Erisipelothrix rhusiopathiae + (only GPR +)

Loeffler's Serum Medium
Isolates C. diphtheriae but is non-selective
produces cells with metachromatic granules when stained with methylene blue stain
Serum Tellurite agar
Corynebacterium dephtheriae will appear as brown-black colonies with intense halo
*selective and differential
Double zone of hemolysis
Clostridium perfringens
microscopic preparations for mycology
Lactophenol cotton blue
Periodic acid-schiff stained smear
KOH prep
C. albicans screen
Positive: PRO+ and NGL+
Germ Tube Test
Positive: C. albicans, C. dublinensis
Negative: C. tropicalis
Gram neg cocci
Neisseria (diplo)
Moraxella (cocco)

Pasteurella


Brucella


Francicella



D-ALA Porphryin Test
ALA disc
Rxn: orange red fluorescence
Screens: H. influenzae, H. parainfluenzae, H. haemolyticu
Bacitracin
Bacitracin disc from blood agar
Rxn: zone
Screen: Beta Strep group A
Esculin Hydrolysis Test
Esculin Disc
Rxn: dark, no fluorescence
Screens: Enterococci +, Beta Strep group A neg
Rapid hippurate Test
Hippurate disc, nihydrin reagent
Rxn: purple color
Screens: Beta strep Group B, Gardnerella, Campy +
Na Hippurate
Rxn: Purple color in tube
Screens: Beta Strep Group B +, Beta Strep Group A neg
Novobiocin Test
Discs, 0.5 McFarland
Rxn: Zone
Screens: Staph. saprophyticus +, Coag Neg Staph - neg
Optochin Test
Taxo discs on Blood agar plate
Rxn: zone
Screens: Strep. pneumo, Strep viridans (group A) neg
PYR
Disc
Rxn: pink/red in 1 minute
screens: Enterococcus faecalis +, Alpha Strep viridans neg, S. lugdunensis +, CNST -
Salt Tolerance
Heart infusion broth
Rxn: growth
Screens: Enterococci faecalis +, Group D neg
Plate CAMP test
Blood agar, Staph aureus, beta Strep B, beta Strep A
Rxn: arrow head hemolysis
Screens: Beta strep Group B +, Beta strep Group A

Group D

Not entero: S. bovis


Entero: E. faecalis