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Micro Stain/Culture
Micro Stain/Culture/Biochemical Techniques
| Question | Answer | Question |
|---|---|---|
| gram positive | PEA | |
| gram positive | CNA | |
| anarobes | laked blood agar | |
| C. diptheriae | tinsdale | |
| Nisseria | thayer | |
| B. pertussis | bordet gengou | |
| legionella | BCYE | |
| Yersinia | CIN | |
| mycobacterium | lowenstein jensen | |
| Ureaplasma urelyticum | MES | |
| use of citrate as sole C source | simmons citrate | |
| staph (staph aureus - yellow) | manitol salts | |
| clostridium (lecinthinase) | egg yolk media | |
| gram negative (lactose fermenters (E. coli) - red) | MacConkey | |
| enterobacteria (salmonella and shigella)(lactose fermenters - yellow, nonfermenters - black) | hektoen enteric agar | |
| salmonella (xylose fermentation - black) from shigella | xylose lysine deoxycholate | |
| vibrio species | TCBS | |
| staph positive, strep negative | catylase | |
| staph aureus positive | coagulase | |
| neisseria - purple (indolphenol) | oxidase | |
| E. coli (tryptophanase) - red | indole | |
| proteus (urease) - pink | urease | |
| citrate as C source - blue | cirate utilization test | |
| strep orange --> black | bile esculin | |
| clear zone in green medium | DNase | |
| gram negative | fermentation | |
| strep pneumoniae | Optochin (P disc) | |
| group A and beta hemolytic strep | A disc (bacitracin) | |
| acid from fermentation of glucose (purple to pink), casein digestion (clear gray), lactose fermentation (purple to white) | litmus milk | |
| enterobacteria, ability to ferment sugars | TSI | |
| C. diptheriae | elek | |
| binds polysaccharides (apple green, blue white) (fungi) | KOH and calcoflour white | |
| CSF specimens, cryptococcus neoformans (fungi) | india ink | |
| polysaccharides, oxidation pink --> purple (fungi) | periodic acid schiff | |
| each microbe has unique phospholipid/FA profile | PLFA | |
| gram negative fermenters - green | eosin methylene blue |