The most frequent cause of uncomplicated community-acquired urinary tract infections is:
a. S. saprophyticus.
b. Klebsiella spp.
c. E. coli.
d. Proteus.
The permanent stained smear protocol of the O&P examination:
a. requires freshly passed, unpreserved stool.
b. is designed to allow the detection of pro-tozoan cysts, coccidian oocysts, micro-sporidial spores, and helminth eggs and larvae.
c. is microscopically examined at low, high dry, and oil immersion magnifications.
d. is designed to facilitate the identification of intestinal protozoa.
The concentration protocol of the ova and parasite (O&P) examination:
a. requires freshly passed, unpreserved stool.
b. is designed to allow the detection of pro-tozoan cysts, coccidian oocysts, micro-sporidial spores, and helminth eggs and larvae.
c. is microscopically examined at low, high dry, and oil immersion magnifications.
d. is designed to facilitate the identification of intestinal protozoa.
Who is at most risk to develop legionnaires' disease?
a. 65-year-old transplant recipient
b. 14 year old swimming in a lake
c. 90 year old living in an apartment complex
d. Newborn baby to a mother infected with hepatitis
In Gram-stained preparations, M. lacunata will appear as:
a. either gram-negative coccobacilli or short, broad rods that tend to resist decoloriza-tion and may appear gram-variable.
b. gram-negative cocci in pairs or short chains.
c. coccobacilli or medium-sized rods.
d. coccobacilli that may appear in chains.
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