chapter 21 Flashcards
A blood sample from a patient is examined on a microscope. Bacterial cells are detected in the sample.
bacteremia
Infection of the lymphatic vessels is known as
lymphangitis
Toxic shock syndrome (TSS) is associated with
both Staphylococcus aureus and Streptococcus pyogenes.
A person is brought to the emergency room with constant high fever, extensive edema, low blood pressure, and petechiae. From which of the following may the person be suffering?
septicemia
Disseminated intravascular coagulation (DIC) is a complication resulting from the
release of lipid A from dying Gram-negative bacteria.
Vegetations are associated with which of the following disease processes?
endocarditis
Unprotected contact with the bodily fluids of an infected animal may result in
brucellosis
The chief diagnostic sign of brucellosis is
fever which reoccurs at 24 hour intervals
Which of the following is/are a reservoir for Francisella tularensis?
rabbits and ticks
Fever, difficulty breathing, extreme fatigue, and elevated heart rate are characteristic of
endocarditis
The normal habitat of ________ is rodents, but humans bitten by fleas carrying the pathogen have fever, severely inflamed lymph nodes, and headache. Later, areas of black, necrotic tissue may develop.
Yersinia pestis
Which of the following is characteristic of Yersinia pestis infections?
buboes
How does Borrelia burgdorferi evade the body’s defenses?
It is capable of antigenic variation and has manganese-containing enzymes.
Primary infection with Epstein-Barr virus is known as
infectious mononucleosis
Epstein-Barr virus infections are typically asymptomatic in ________ because of incomplete development of adaptive immunity.
young children
A few days of fever with vomiting followed by high fever, jaundice, “black vomit” are characteristic of
yellow fever
Cycles of fever, chills, anemia and headache along with passage of dark colored urine are the symptoms of infection with
P. falciparum
Schizogony is an important aspect of which of the following pathogens?
plasmodium species
Dengue hemorrhagic fever is the result of
a hyperimmune response to reinfection with dengue virus.
A young woman develops a fever after a recent trip to a Caribbean island. She also experiences severe headache and pain “in the bones.” After a few days, she also develops a rash. Which of the following did she most likely contract?
dengue virus
Which of the following is/are transmitted by Aedes mosquitoes?
both dengue fever and yellow fever
A large number of people in an African village become ill a couple of weeks after sharing a feast of stew made from the meat of jungle animals. They initially have fever, headache and fatigue, and develop petechiae. Most then experience bloody diarrhea and vomiting, and a few days later begin bleeding from the mouth and eyes. What is the most likely preliminary diagnosis?
ebola hemorrhagic fever
Which of the following is known to be teratogenic?
cytomegalovirus
Depletion of clotting proteins from the serum leads to the uncontrollable hemorrhaging seen in ________ infections.
ebola virus
