Why is treatment with antimicrobial drugs NOT encouraged in patients with diarrhea caused by enteric bacteria?
What will be an ideal response?
Antimicrobial treatment of enteric diarrhea can worsen the prognosis by killing many bacteria at once, releasing large amounts of lipid A. The release of lipid A from these bacteria causes fever, vasodilation, inflammation, shock, and DIC, potentially leading to death. In addition, the diarrhea is normally self-limiting, and the expulsion of the organisms from the body is often more effective than antimicrobial treatment.
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Which of the following is an exception to the central dogma?
A) the discovery of RNA viruses that synthesize DNA using reverse transcriptase B) the discovery that the Archaea and Bacteria are more distantly related than are Archaea and Eukarya C) the discovery of ribozymes D) the discovery of DNA as the unit of genetic inheritance
For heart muscles to beat in a coordinated rhythm ions must move from one cell to the next through ____.
A. gap junctions B. hemidesmosomes C. focal adhesions D. adherens junctions E. desmosomes
A particular flower can be purple, blue, red, or white. Two different pure-breeding white plants are crossed and the F1 are then crossed to produce an F2 generation. What might a 9:7 phenotypic ratio in the F2 indicate?
A) reciprocal recessive epistasis B) codominance C) dominant epistasis D) recessive lethality E) additivity
The primary function of the blood is
A. transportation. B. metabolism. C. increasing temperature. D. to supply the lymphatic system.