Urease test: Difference between revisions

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** Positive if the orange-yellow color turns bright pink
** Positive if the orange-yellow color turns bright pink
* Common urease-positive organisms include
* Common urease-positive organisms include
** [[Proteus species]]
** [[Proteus]]
** [[Cryptococcus species]]
** [[Cryptococcus]]
** [[Corynebacterium species]]
** [[Corynebacterium]]
** [[Helicobacter pylori]]
** [[Helicobacter pylori]]
** [[Brucella species]]
** [[Brucella]]
** [[Nocardia species]]
** [[Nocardia]]
** [[Ureaplasma species]]
** [[Ureaplasma]]
* All organisms include: {{#ask: Urease [[Urease::positive]]}}


[[Category:Diagnostics]]
[[Category:Diagnostics]]

Latest revision as of 16:43, 25 January 2022

  • Tests for the ability of the bacteria to metabolize urea by using phenol red to detect a pH change from lysis of urea into ammonia and carbon dioxide
  • Often found in bacteria that cause urinary tract infections
  • Procedure
    • Into a tube with urea medium, stab an inoculum of the isolate into the medium then streak the slant
    • Incubate with a loose lid at 35ºC for 24 hours
    • Positive if the orange-yellow color turns bright pink
  • Common urease-positive organisms include
  • All organisms include: Brucella melitensis, Helicobacter pylori, Proteus, RhodotorulaThe part "Urease" of the query was not understood.</br>Results might not be as expected.