Exam 17: Nocardia, Streptomyces, Rhodococcus, Oerskovia, and Similar Organisms

Which partially acid-fast,gram-positive,and branching filamentous bacteria appear dry and white to creamy to orange with rhizoid edges on routine agar and are urea-positive and resistant to lysozyme?

A chronic,granulomatous infection of subcutaneous tissues,which is caused by aerobic actinomycetes resulting in tissue swelling and draining sinus tracts,is referred to as:

Non-acid-fast aerobic actinomycetes include:

The organism that has been most commonly associated with human disease,particularly in patients who are immunocompromised,such as those infected with human immunodeficiency virus (HIV),is:

Nocardia spp.cause which of the following types of infections in individuals who are immunocompromised?

Nocardia spp.form branched filaments that extend into the air that are called _____ hyphae.

Nocardia spp.form branched filaments that extend along the agar surface,which are called _____ hyphae.

Which organisms should be used to run quality control for acid-fast stains?

Partially acid-fast aerobic actinomycetes include:

The group of bacteria that can be described as being normal inhabitants of soil and water and primarily responsible for the decomposition of plant material is: