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Unit II API
| Question | Answer |
|---|---|
| In what kind of incubator, and for how long should the API be incubated in? | non-CO2, 18-24 hours |
| Which tests should be overlayed with oil? | ADH, LDC, ODC, H2S, and URE |
| How should the inoculum be prepared? | Organisms emulsified into 5 mL of sterile saline or distilled water |
| What is the color of a positive indole test? | Brown-Red |
| What are the reagents used in this test? | Kovac's, VP1 (40% KOH), VP2 (alpha - naphthol), Sulfanilic acid, (alpha-naphtholamine), zinc dust, and oxidase test reagent |
| Which tests need to be filled to the top? | Citrate, Geliatin, and VP |
| What color are positive and negative glucose tests? | Positive yellow, Negative blue |
| What additional tests are performed to clarify ambiguous test results? | NO2, N2, OF-Dextrose, McConkey, Mobility, Oxidase |
| In which cupule is the nitrate test performed in? | The glucose cupule |
| When are additional tests performed? | When glucose is negative, or when glucose is negative and less than three tests are negative |