The sputum of a patient with acquired immunodeficiency syndrome (AIDS) is stained with Kinyoun's carbolfuchsin stain. Which organism would test positive using this stain?
a. Streptomyces spp.
b. Pneumocystis jiroveci
c. S. aureus
d. Cryptosporidium spp.
D
All of the acid-fast stains will reveal Cryptosporidium spp. if they are present in the respiratory tract, as may occur in patients who are immunosuppressed.
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Given what you now know, what information is most likely to produce the correct answer?
What will be an ideal response?
Intertidal zones are determined by: a. the substrate
b. the depth of water at high tide. c. amount of sunlight available. d. the amount of exposure between high and low tide.
Steroid hormones are derived from what molecule?
A. peptides B. protein C. modified amino acids D. glycoproteins E. cholesterol
Treponema pallidum, a bacterium associated with syphilis, is not considered a pathogen because to date it remains unculturable in the lab, and, therefore, Koch's postulates are unable to be fulfilled
Indicate whether the statement is true or false.