Set of comprehensive safety guidelines designed to protect patients and health care workers
Class C fires involve:
Question options:
Clostridium difficile is a gram-positive, spore-forming bacilli. The remaining organisms will all stain gram-negative on direct smear or smears made from culture.
Which of the following organisms are gram-positive?
Malbranchia species share the production of alternate staining arthroconidia as a common feature with the mold form of Coccidioides immitis.
Both Geotrichum species and Trichosporon species produce rectangular-shaped arthroconidia; however, they are regularly rather than alternately staining. Additionally, the arthroconidia of Geotrichum may produce germ tubes from one corner and the arthroconidia of Trichosporon species may produce blastoconidia from adjacent corners, features not shared by either Malbranchia species or Coccidioides immitis.
The hyphae of Microsporum canis, as seen in direct KOH mounts of skin scales, may break up into arthroconidia; however, they are much narrower in dimension and do not share the alternate staining characteristics.
Microbiology
The hyaline saprobic fungus that has microscopic features similar to the mold form of Coccidioides immitis is:
TESTED 21 Nov 2024
