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Micro-toprank
| Question | Answer |
|---|---|
| Colonies appear black with silver metallic sheen | Salmonella typhi in Bismuth Sulfite |
| Agar selective for Salmonella | Bismuth Sulfite |
| Color result for non lactose fermenter in SSA or MAC | Colorless |
| Color result for non lactose fermenter in Hektoen Enteric Agar HEA | Blue/green |
| Color result for lactose fermenter in Hektoen Enteric Agar HEA | Orange |
| Color result for lactose fermenter in MAC/SSA | Dark pink |
| Inhibitor of Bismuth Sulfite | Bismuth sulfite |
| H2s indicator of Hektoek enteric agar and SSA | Ferric ammonium citrate |
| Agar that is a combined MAC and SSA | Hektoek Enteric Agar |
| Agar selective for salmonella spp | Bismuth sulfite |
| CHO in BGA | Lactose |
| CHO in Bismuth sulfite | Glucose |
| Appearance of salmonella spp colonies | White colonies resembling a snowflake surrounded by a brilliant red medium |
| Reducing agents for anaerobic culture media | Thioglycolic acid, Sodium thioglycolate, or Cystine |
| Culture media used by most bacteria for antibiotic susceptibility testing | Mueller Hinton Agar/Broth |
| Culture media used for antibiotic susceptibility testing by Mycobacterium spp | Middlebrook 7H10 or 7H11 |
| Culture media used for antibiotic susceptibility testing by Haemophilus spp | Haemophilus Test Media (HTM) and/or Mueller Hinton with Chocolate agar base |
| Examples of anaerobic culture media | Kanamycin vancomycin laked blood agar, Bacteroides Bile Esculin Medium |
| In SIM, has charac. Inverted Christmas tree pattern or Open umbrella | L.monocytogenes |
| True pathogens of the family Enterobacteriacea | Salmonella, Shigella, Yersinia(y.eterocolitica-gastritis), E.coli(pathogenic strains |
| To diff E.coli vs A.baumanni | TSI = A.baumanni (red/red) so its no fermentative, Enterobacter is fermentative |
| All Enterobacter reduce nitrate to nitirite, except: | Pantoea agglomerans (old Enterobacer) |
| All Enterobacter are Catalase positive, except: | Shigella dysenteriae |
| Concave/High elevation | Staphylococcus |
| Convex/Low elevation | Micrococcus |
| Non pigmented Pseudomonas sp | P.stutzeri |
| Causes Shanghai fever/Jacuzzi or Hot tub Syndrome | P.aeruginosa |
| Swimmer’s ear | P.aeruginosa |
| Most preffered specimen for B.pertussin infection | Nasipharyngeal swab/washings |