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Bacteriology I
Bacteriology II
Bacteriology III
Mycology
Parasitology
100
This organism is associated with a disease characterized by the presence of a pseudomembrane in the throat and the production of an exotoxin that is absorbed into the bloodstream with a lethal effect?
What is Corynebacterium diphtheriae
100
This gram negative bacteria is: lactose negative, citrate negative, urease negative, lysine decarboxylase negative, and non-motile.
What is Shigella dysenteriae
100
This organism is associated with satelliting growth pattern.
What is Haemophilius influenzae
100
The cause of tinea versicolor
What is Malassesia furfur
100
This species of malaria parasite usually has ameboid trophozoites and produces small reddish dots in the red blood cell cytoplasm.
What is Plasmodium vivax
200
In the CAMP test, a single streak o fa beta-hemolytic Streptococcus is placed perpendicular to a streak of beta-lysin-producing Staphylococcus aureus. After incubation, a zone of increased lysis in the shape of an arrowhead is noted; this indicates the presumpitve identification of what?
What is Streptococcus agalactiae
200
This bacteria will only grow on culture media supplemented with either cysteine or cystine.
What is Francisella tularensis
200
This species of Mycobacterium is most commonly associated with contamination of the hot water system in large institutions such as hospitals.
What is M. xenopi
200
This dimorphic fungus typically has a tissue phase in which the large mother cells have one to a dozen narrow-necked buds and a slowly growing mycelial form with intercalary chlamydoconidia and coiled hyphae.
What is Paracoccidioides brasiliensis
200
This type of disease is most commonly associated with Acathamoeba sp.
What is Keratitis
300
A bone marrow transplant patient on immunosuppressive therapy developed a pulmonary abscess with symptoms of neurologic involvement. A brain abscess was detected by MRI, and aspirated material grew an aerobic, filamentous, branching gram-positive organism, which stained weakly acid-fast. The most likely etiologic agent in this case would be?
What is Nocardia asteroides
300
Which of the following organisms would display a positive Voges-Proskauer reaction? a. Enterobacter aerogenes b. Escherichia coli c. Proteus vulgaris d. Providencia rettgeri
What is Enterobacter aerogenes
300
Hansen disease is caused by this organism.
What is Mycobacterium leprae
300
This yeast-like fungus was isolated from a sputum sample with the following characteristics: no hyphae on cornmeal agar with tween 80, negative for nitrate assimilation, positive for inositol assimilation, produced urease at 37 degrees C.
What is Cryptococcus neoformans
300
This pair of helminths cannot be reliably differentiated by the appearance of their eggs. a. Ascaris lumbricoides and Necator americanus b. Hymenolepsis nana and H. diminuta c. Necator americanus and Ancylostoma duodenale d. Diphyllobothrium latum and Fasciola hepatica
What is Necator americanus and Ancylostoma duodenale
400
This bacteria is associated with infections in humans often linked to deli meats and improperly pasteurized dairy products.
What is Listeria monocytogenes
400
This bacteria grew from pus which was aspirated from an empyema. A gram stain of the material showed many white blood cells and numerous gram-negative bacilli. The culture grew many colonies producing a soluble green pigment.
What is Pseudomonas aeruginosa
400
This is the characteristic colony morphology of Actinomyces israelii on solid agar.
What is a molar tooth
400
This organism caused a 38-year old man from Ohio to present to his physician with mild influenzalike illness that included headache and malaise. His chest x-ray showed no infiltrates. His past medical history was unremarkable. He had no histoery of travel, but reported recently cleaning the bell tower at his church, which had quite a bit of bird excrement.
What is Histoplasma capsulatum
400
This stage of Tichuris trichiura is infective for humans.
What is Embryonated ovum
500
An environmental sampling study of respiratory therapy equipment produced cultures of this bacteria described as: yellow, nonfermentaive (at 48 hours), gram-negative bacillus from several of the nebulizers.
What is Chryseobacterium spp.
500
Eikenella corrodens is an opportunistic pathogen, but is most noted for causing this.
What is abscesses of the oral cavity
500
This helicoidal, flexible organism was demonstrated on a blood smear. It is motile an approximately 12um long and 0.1 um wide with semicircular hooked ends.
What is Leptospira
500
This organism caused a 4-year-old child's hair to fall out in patches. The hair fluoresces when subjected to the UV light from a Wood's lamp. A white cottony mould grows at 25 degrees C on potatoe dextrose agar. Microscopically, there are rare microconidia, septate hyphae, and terminal chlamydospores. Macroconidia are absent.
What is Microsporum audouinii
500
This intestinal parasite is seen in an iodine-stained fecal wet mount that is describes as being 25 um in diameter with a homogenously stained central body surrounded buy a thin ring of cytoplasm containing a number of nuclei.
What is Blastocystis hominis