Exam 21: Achromobacter, Rhizobium, Ochrobactrum, and Similar Organisms

Which organism is a nonlactose-fermenter that oxidizes glucose and xylose and also morphologically resembles colonies of Enterobacteriaceae?

Although validated susceptibility testing methods do not exist for this group of organisms,in vitro data suggest that certain cephalosporins and aminoglycosides are effective against which one of the following groups of organisms?

The most common type of infection caused by both R.radiobacter and Ochrobactrum anthropi is:

A patient with an indwelling catheter tip began spiking a fever of 39°C.The site of the catheter was inflamed and red.The catheter tip was cultured,and the following organism was isolated: a nonlactose-fermenter on MacConkey agar;a glucose,xylose,and mannitol oxidizer with the ability to hydrolyze esculin.This organism is most likely which one of the following?

The reservoir for O.anthropi is:

Which nonlactose-fermenting organism,that rarely causes human infection,grows poorly at 35°C;however,grows optimally between 20°C and 25°C?

Which two organisms should be used to determine the validity of the nitrate reduction test?

Which of the following organisms has clear colonies on MacConkey agar,oxidizes glucose and xylose,and has the ability to hydrolyze esculin?

The natural habitat of Ochrobactrum spp.can best be described as the: