Oral Spot Practical Examination (OSPE) - 2. Shigella on Deoxycholate citrate agar (DCA)
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Transcript of Oral Spot Practical Examination (OSPE) - 2. Shigella on Deoxycholate citrate agar (DCA)
![Page 1: Oral Spot Practical Examination (OSPE) - 2. Shigella on Deoxycholate citrate agar (DCA)](https://reader036.fdocuments.net/reader036/viewer/2022081503/56649eef5503460f94bfed09/html5/thumbnails/1.jpg)
Oral Spot Practical Examination (OSPE) - 2
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Shigella on Deoxycholate citrate agar (DCA)
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Salmonella on Salmonella-Shigella (SS) agar.
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API-20 strip test
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Proteus: Urease positive
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CharacterKlebsiellaEnterobacterSerratia
Motility-++
Indole+--
Red pigment--+
Quellung reaction
+--
Differences between Klebsiella, Enterobacter, Serratia
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Widal tube agglutination test
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ConditionDoubtful Significant
Typhoid Fever 1:160 1:320
Paratyphoid Fever 1:80 1:160
Interpretation of Widal test
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Colicine typing of Shigella
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Swarming of Proteus
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Pseudomonas on Blood agar
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.
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CETRIMIDE AGAR: Selective for P. aeruginosa
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Positive Citrate test for Pseudomonas
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Pseudomonas pyocine typing
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Bacteroides fragilis: Neomycin selective medium
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Bacteroides sensitive to metronidazole disc
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Campylobacter Gram negative smear
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Campylobacter on Butzler medium
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C. jejuni hydrolyze hippurate
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Gram stain of Vibrio cholerae
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TCBS Agar - Vibrio
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Alkaline peptone water and Selenite - F
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V. Cholerae : Cholera red reaction
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Haemophilus culture on chocolate agar
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Haemophilus influenzae: X and V factors
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Carbon dioxide candle jar
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Fluorescent antibody stain.
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Pernasal swabs
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Bordetella on Bordet - Gengou medium
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Bordetella on selective charcoal cephalexin blood agar
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Slide latex agglutination test with specific antisera
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Yersinia bipolar safety pin Giemsa staining
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Yersinia: non-lactose fermenter on Mc Conkey
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Francisella tularensis: on chocolate cysteine agar
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Pasteurella multocida: non-hemolytic, mucoid colonies
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Blood culture bottles
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Brucella: Blood culture Castaneda diphasic bottle
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Brucella on tryptone soya agar
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B. abortus & meletensis grow in presence of basic fuchsin
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Brucella : Standard Agglutination Test
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Species
CO2
H2S (days)
Growth in presence of Urease
12345Basic fuchsin
ThioninMethyl violet
B. melitensis------++++ / -
B. abortus++++--+-++
B. suis-+++++-+-+
Identification of Brucella species
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Blood wet preparation for Borrelia
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Leptospira interrogans
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Darkfield microscope
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,
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Treponema pallidum
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Treponema pertenue
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Treponema carateum
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VDRL TEST
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Treponema Pallidum Immobilization
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Treponema pallidum Hemagglutination test
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VDRLRPRSpecimenOnly serum
used, serum heated
Serum & plasma used, no heating
AntigenDiluted before use
Not diluted
Reading of results
Microscopically from slide
Macroscopically from card
TechniqueDifficultEasy
Sensitivity
Less sensitiveMore sensitive
False positiveLess oftenMore often
Comparison of VDRL AND RPR
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Legionella pneumophila: Gram stain
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L. pneumophila on selective Mueller Hinton agar
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Immunofluorescence Microscope
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Branching rods of Nocardia asteroides
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Gram-positive branching rods of Actinomyces
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Sulpher granules of Actinomyces
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Disc diffusion sensitivity test
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Control Organism
Control Organism
Test Organism
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E - TEST SENSITIVITY TECHNIQUE
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Rosco Neo-Sensitabs Sensitivity Test
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Antibiotics synergy test on Mueller–Hinton agar
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Antibiotics antagonism on Mueller–Hinton agar
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Chlamydia - Giemsa stain
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Chlamydia Mc Coy tissue culture
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Chlamydia - CFT
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Mycoplasma agar: Colonies have fried egg shape
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Mycoplasma : A positive cold agglutinin test
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Sites of inoculation of fertile eggs
Coxiella: Culture in yolk sac of chick embryo
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Giemsa stain: Rickettsia inside the cell
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:
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Rickettsia: Weil-Felix Test
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Helicobacter pylori: Spiral gram negative rods
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Helicobacter pylori on selective Butzler medium
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Water Examination: The multiple tube technique
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Water Examination: Viable plate countiable plate count
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Milk Examination: Methlylene blue reduction test
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Milk Examination: Milk ring test:
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Milk Examination: Phosphatase testPhosphatase test::
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