Question 1

For the following list of anti-HIV drugs and their mechanism of action, identify the mismatch.

Accepted Answer

A)  Protease inhibitor; blocks the active site of the protease required for assembling new viral particles.
B)  Integrase inhibitor; blocks the active site of the enzyme required to splice HIV DNA into the human genome
C)  Reverse transcriptase inhibitor; blocks the active site of the enzyme required to convert viral RNA to DNA
D)  AZT (azidothymidine) ; as an analog of thymidine, it is incorporated into viral RNA in place of thymidineE) A) and D)
F) B) and C)

Question 2

Which of the following statements is incorrect regarding patients with AIDS?

Accepted Answer

A)  AIDS patients get repeated, life-threatening, opportunistic infections.
B)  The highest number of AIDS cases worldwide is in the United States.
C)  AIDS patients have an immunodeficiency.
D)  AIDS patients have a CD4 T-cell titer below 200 cells/mm3 of blood.
E)  AIDS patients can get unusual cancers and neurological disorders.F) B) and D)
G) A) and B)

Question 3

Symptoms of infectious mononucleosis include

Accepted Answer

A)  fever, severe diarrhea, pneumonitis, hepatitis, and retinitis.
B)  sore throat, fever, cervical lymphadenopathy, and splenomegaly.
C)  fever and pocks on skin.
D)  vesicular lesions in oral mucosa.E) C) and D)
F) B) and D)

Question 4

Which of the following statements is incorrect regarding malaria?

Accepted Answer

A)  Trophozoites develop in red blood cells.
B)  Gametocytes enter the mosquito as she draws a blood meal from a human.
C)  Merozoites enter and multiply in liver cells.
D)  The mosquito inoculates human blood with sporozoites.E) C) and D)
F) A) and D)

Question 5

In severe cases of Rocky Mountain spotted fever, the enlarged lesions of the rash can become necrotic and predispose the patient to gangrene of toes and fingertips.

Accepted Answer

A) True 
 B)False

Question 6

Under normal healthy circumstances, the lymphatic system filters any microorganisms present.

Accepted Answer

A) True 
 B)False

Question 7

The most common causative agent of acute endocarditis is ______.

Accepted Answer

A)  Neisseria gonorrhoeae
B)  Staphylococcus aureus
C)  Epstein-Barr virus
D)  Streptococcus pyogenes
E)  Streptococcus pneumoniaeF) B) and C)
G) A) and E)

Question 8

The causative agent of Lyme disease is ______.

Accepted Answer

A)  Leptospira interrogans
B)  Ixodes pacificus
C)  Borrelia burgdorferi
D)  Borrelia hermsii
E)  Ixodes scapularisF) All of the above
G) B) and C)

Question 9

The causative agent in a case of sepsis can be isolated by

Accepted Answer

A)  inoculating blood agar with a sample of the patient's blood.
B)  performing a Kirby-Bauer assay on a sample of the patient's blood.
C)  sending a blood sample to the CDC laboratories in Atlanta.
D)  centrifugation of the blood to separate cells and plasma.E) B) and D)
F) A) and B)

Question 10

Malaria may be prevented by

Accepted Answer

A)  using bed nets sprayed with insecticide.
B)  eliminating standing water.
C)  taking prophylactic drugs.
D)   using genetically engineered mosquitoes.
E)  All of the choices are correct.F) A) and E)
G) A) and D)

Question 11

Which of the following statements regarding erhlichiosis is incorrect?

Accepted Answer

A)  It often coinfects with Borrelia burgdorferi.
B)  Treatment requires an extensive course of antibiotics, usually 3-6 weeks.
C)  The disease vector is transmitted by Ixodes ticks.
D)  Symptoms include fever, headache, and muscle pains.
E)  The disease is diagnosed by PCR or indirect fluorescent antibody tests.F) B) and D)
G) A) and D)

Question 12

Humans should be routinely vaccinated against Lyme disease.

Accepted Answer

A) True 
 B)False

Question 13

The presence of viruses in the blood is called ______.

Accepted Answer

A)  septicemia
B)  fungemia
C)  viremia
D)  hemovirusE) B) and D)
F) A) and B)

Question 14

Which drug interferes with the action of an HIV enzyme needed for final assembly and maturation of the virus?

Accepted Answer

A)  Fusion inhibitor
B)  Reverse transcriptase inhibitor
C)  Integrase inhibitor
D)  Protease inhibitorE) A) and B)
F) A) and C)

Question 15

The most important defense of the cardiovascular system against infection is ______.

Accepted Answer

A)  lymphocytes in the blood
B)  lymph nodes
C)  the blood-brain barrier
D)  feverE) B) and C)
F) A) and B)

Question 16

Epidemiologists classify diseases by their mortality rate (the percent of infected individuals who die from the disease)  and by their communicability (how easy it is to transmit the disease) .Which of the following diseases of the cardiovascular system is mismatched with a description of its properties?

Accepted Answer

A)  Ebola; high mortality rate and high communicability
B)  Malaria; low mortality rate and high communicability
C)  Plague; somewhat high mortality rate and low communicability
D)  AIDS; high mortality rate and low communicabilityE) All of the above
F) A) and B)

Question 17

Despite the aggressive defense of the cardiovascular system by the immune system, some microbes can invade and establish an infection in the blood.From the following list of microbes and their virulence factors, identify the mismatch.

Accepted Answer

A)  Bacillus anthracis produces antioxidants to combat lysosomes.
B)  Coxiella burnetii produces an endospore-like structure.
C)  Trypanosoma cruzi cloaks itself in host proteins to avoid immune recognition.
D)  Borrelia burgdorferi changes its surface antigens to avoid immune recognition.E) A) and C)
F) All of the above

Question 18

Lyme disease involves

Accepted Answer

A)  early symptoms of fever, headache, and stiff neck.
B)  crippling polyarthritis, cardiovascular issues, and neurological problems.
C)  people exposed to wooded or forested areas.
D)  treatment with antimicrobials.
E)  All of the choices are correct.F) A) and E)
G) A) and D)

Question 19

Which of the following is not associated with sepsis?

Accepted Answer

A)  Drop in blood pressure
B)  Respiratory acidosis
C)  Endotoxic shock
D)  Parenteral or endogenous transfer
E)  Fever and shaking chillsF) B) and C)
G) A) and D)

Question 20

Brucellosis is

Accepted Answer

A)  treated with a 3-6 week course of antibiotics.
B)  seen in patients as a fluctuating fever, with headache, muscle pain, and weakness.
C)  diagnosed with serological testing of the patient's blood.
D)  an occupational illness of people who work with animals.
E)  All of the choices are correct.F) A) and E)
G) A) and B)

Exam 20: Infectious Diseases Affecting the Cardiovascular and Lymphatic Systems

In severe cases of Rocky Mountain spotted fever, the enlarged lesions of the rash can become necrotic and predispose the patient to gangrene of toes and fingertips.

Correct Answer
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Correct Answer
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Which of the following statements regarding erhlichiosis is incorrect?

Correct Answer
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Lyme disease involves

Correct Answer
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Symptoms of infectious mononucleosis include

Correct Answer
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Despite the aggressive defense of the cardiovascular system by the immune system, some microbes can invade and establish an infection in the blood.From the following list of microbes and their virulence factors, identify the mismatch.

Correct Answer
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Which of the following is not associated with sepsis?

Correct Answer
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Malaria may be prevented by

Correct Answer
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Humans should be routinely vaccinated against Lyme disease.

Correct Answer
verified

The causative agent in a case of sepsis can be isolated by

Correct Answer
verified

Brucellosis is

Correct Answer
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The most common causative agent of acute endocarditis is ______.

Correct Answer
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The most important defense of the cardiovascular system against infection is ______.

Correct Answer
verified

For the following list of anti-HIV drugs and their mechanism of action, identify the mismatch.

Correct Answer
verified

The presence of viruses in the blood is called ______.

Correct Answer
verified

Under normal healthy circumstances, the lymphatic system filters any microorganisms present.

Correct Answer
verified

Which of the following statements is incorrect regarding malaria?

Correct Answer
verified

Which drug interferes with the action of an HIV enzyme needed for final assembly and maturation of the virus?

Correct Answer
verified

Which of the following statements is incorrect regarding patients with AIDS?

Correct Answer
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The causative agent of Lyme disease is ______.

Correct Answer
verified

Exam 20: Infectious Diseases Affecting the Cardiovascular and Lymphatic Systems

In severe cases of Rocky Mountain spotted fever, the enlarged lesions of the rash can become necrotic and predispose the patient to gangrene of toes and fingertips.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which of the following statements regarding erhlichiosis is incorrect?

Correct AnswerverifiedShow Answer

Lyme disease involves

Correct AnswerverifiedShow Answer

Symptoms of infectious mononucleosis include

Correct AnswerverifiedShow Answer

Despite the aggressive defense of the cardiovascular system by the immune system, some microbes can invade and establish an infection in the blood.From the following list of microbes and their virulence factors, identify the mismatch.

Correct AnswerverifiedShow Answer

Which of the following is not associated with sepsis?

Correct AnswerverifiedShow Answer

Malaria may be prevented by

Correct AnswerverifiedShow Answer

Humans should be routinely vaccinated against Lyme disease.

Correct AnswerverifiedShow Answer

The causative agent in a case of sepsis can be isolated by

Correct AnswerverifiedShow Answer

Brucellosis is

Correct AnswerverifiedShow Answer

The most common causative agent of acute endocarditis is ______.

Correct AnswerverifiedShow Answer

The most important defense of the cardiovascular system against infection is ______.

Correct AnswerverifiedShow Answer

For the following list of anti-HIV drugs and their mechanism of action, identify the mismatch.

Correct AnswerverifiedShow Answer

The presence of viruses in the blood is called ______.

Correct AnswerverifiedShow Answer

Under normal healthy circumstances, the lymphatic system filters any microorganisms present.

Correct AnswerverifiedShow Answer

Which of the following statements is incorrect regarding malaria?

Correct AnswerverifiedShow Answer

Which drug interferes with the action of an HIV enzyme needed for final assembly and maturation of the virus?

Correct AnswerverifiedShow Answer

Which of the following statements is incorrect regarding patients with AIDS?

Correct AnswerverifiedShow Answer

The causative agent of Lyme disease is ______.

Correct AnswerverifiedShow Answer

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