Of the following, which is a facultative anaerobe that is a…

 Of the following, which is a facultative anaerobe that is a GNR, has a musty or mushroom smell, is fastidious, is commonly transmitted through animal bite wounds, and possesses the following characteristics: Catalase        pos Nitrate         pos TSIA           A/A with no gas Indole          pos Oxidase        pos Penicillin       Susceptible MacConkey    no growth

An organism is isolated from the endotracheal tube of a pati…

An organism is isolated from the endotracheal tube of a patient receiving chemotherapy The gram negative bacillus grows  on BAP and MacConkey – the MAC plate is shown here. The isolate is motile, oxidase positive, and biochemically an oxidizer. Which of the following is the likely etiologic agent? Exam 1 Image 5.jpg

 The following results are obtained from a gram-negative rod…

 The following results are obtained from a gram-negative rod isolated from an intra-abdominal abscess: grown under anaerobic conditions: 1-mg kanamycin disk           resistant 5-mg vancomycin disk         resistant 10-mg colistin disk             resistant bile disk                           resistant LKV agar                          positive Indole                             negative Catalase                           positive The likely identity of this organism is:

You are reading a MIC for vancomycin.   The dilution series…

You are reading a MIC for vancomycin.   The dilution series in mcg/ml is 64, 32, 16, 8, 4, 2, and 0.  The tubes are turbid (i.e., cloudy) from the 0 through the 8 mcg/ml tubes.  The dilution tubes from 16 through 64 mcg/ml are clear.  The MIC for this organism would be reported as:

A non-motile, gram-positive rod is recovered under anaerobic…

A non-motile, gram-positive rod is recovered under anaerobic conditions from an abscess.  The organism has a “boxcar” microscopic morphology, produces a double zone of hemolysis on BAP, produces a positive Naegler reaction, and has a zone of precipitation around colonies growing on egg yolk agar. The most likely agent is: