Question 1

At the blood donation facility,you are completing an information form.The form asks about your health history and includes a question about whether you have ever had malaria or visited a country where malaria is endemic.Why is this information relevant?

Accepted Answer

A)   If you are infected with malaria, you are probably also infected with HIV, and that would disqualify your donation.
B)   Recipients differ in their susceptibility to malaria; if you have had malaria, the staff will earmark your blood to specific kinds of recipients.
C)   This is just one of many pathogens that blood is screened for. The information given by the donor saves the staff time in testing the blood.
D)   Malarial parasites can persist in the liver, and, as a result, could be contaminating your blood and transferred to a recipient.E) All of the above
F) A) and B)

Question 2

Pasteurization of milk helps to prevent ______.

Accepted Answer

A)   endocarditis
B)   mononucleosis
C)   brucellosis
D)   tularemia
E)   plagueF) B) and C)
G) B) and E)

Question 3

Control of rodent populations is important for preventing ______.

Accepted Answer

A)   malaria
B)   Q fever
C)   brucellosis
D)   plagueE) B) and C)
F) B) and D)

Question 4

Which of the following is not true of bubonic plague?

Accepted Answer

A)   An infection can progress to septicemia.
B)   It is transmitted by the fecal-oral route.
C)   A patient exhibits fever, headache, nausea, and weakness.
D)   A patient often has enlarged inguinal lymph nodes.
E)   It is caused by Yersinia pestis.F) C) and D)
G) B) and D)

Question 5

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) None of the above
G) C) and D)

Question 6

Which of the following infectious agents and means of disposal are mismatched?

Accepted Answer

A)   Drums made with animal hides should be treated with sterilizing gas to eliminate endospores.
B)   Coagulation factors purified from blood must be heat-treated to destroy HIV.
C)   Carcasses of animals that died of anthrax must be incinerated to avoid endospores entering the soil.
D)   Mosquito bed nets must be washed in bleach weekly to eliminate any residual Plasmodium.E) C) and D)
F) All of the above

Question 7

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) A) and E)
G) A) and D)

Question 8

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 D)
G) All of the above

Question 9

Which of the following statements regarding Q fever is incorrect?

Accepted Answer

A)   The disease is mild, and most cases go undetected.
B)   Symptoms include fever, muscle aches, rash, and occasionally pneumonia.
C)   The causative agent, Coxiella burnetii, produces resistant endospore-like structures.
D)   Humans can be infected from the airborne spread of particles from infected animals.
E)   The causative agent, Coxiella burnetii, is transmitted by lice.F) B) and C)
G) A) and E)

Question 10

Your patient was admitted for a gunshot wound about a week ago.As a precautionary activity,the doctor placed her on antibiotics for a few days while recuperating.Blood specimens are drawn on the patient a several times daily and sent to the microbiology lab for analysis of bacteria.Nothing has grown in culture.On her 4th day in the hospital,she has had no fever and no other signs of infection,but one set of blood specimens has been reported positive for a bacterium.The culture was identified by the lab as Staphylococcus epidermidis,a common organism on the skin.Predict the likely situation leading to this.

Accepted Answer

A)   Staphylococcus epidermidis is a skin contaminant that ended up in the blood specimen as a consequence of poor aseptic technique during the venipuncture.
B)   Staphylococcus epidermidis is a very slow growing bacterium and was probably in the blood right after the gunshot wound, but failed to grow until now.
C)   The patient is immunodepressed and very susceptible to bacterial infection.
D)   Staphylococcus epidermidis has converted to a pathogen because of the antibiotics prescribed for the patient.E) None of the above
F) C) and D)

Question 11

Which of these diseases would most likely be identified by viewing a stained blood smear in a light microscope?

Accepted Answer

A)   Chagas disease
B)   Dengue fever
C)   HIV
D)   Ebola hemorrhagic feverE) A) and B)
F) A) and C)

Question 12

The gram-negative bacillus associated with abscesses from cat bites or scratches is ______.

Accepted Answer

A)   Brucella suis
B)   Salmonella typhimurium
C)   Bartonella henselae
D)   Francisella tularensis
E)   Yersinia pestisF) A) and C)
G) D) and E)

Question 13

Which of the following are features that make Bacillus anthracis a potential bioterrorism weapon?

Accepted Answer

A)   It is naturally occurring worldwide in soil, and intentional release may not be suspected.
B)   It forms endospores that can be stored in powder form indefinitely.
C)   Pulmonary anthrax is rapidly fatal.
D)   Vaccination is not widespread in the United States.
E)   All of these choices are correct.F) A) and D)
G) None of the above

Question 14

Acute endocarditis is most commonly contracted through ______.

Accepted Answer

A)   parenteral entry
B)   droplets
C)   ingestion
D)   fomites
E)   casual contactF) B) and D)
G) C) and D)

Question 15

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 B)
G) A) and D)

Question 16

Most cases of sepsis are caused by ______.

Accepted Answer

A)   prions
B)   fungi
C)   viruses
D)   bacteria
E)   protozoansF) A) and D)
G) B) and D)

Question 17

The fibrous sac that encloses the heart is the ______.

Accepted Answer

A)   myocardium
B)   epicardium
C)   endocardium
D)   pericardium
E)   ectocardiumF) B) and E)
G) C) and D)

Question 18

Which of the following is a hemorrhagic fever?

Accepted Answer

A)   Cat-scratch fever
B)   Q fever
C)   Chikungunya
D)   Rocky Mountain spotted fever
E)   Trench feverF) A) and E)
G) None of the above

Question 19

The cardiovascular and lymphatic systems have no normal biota.

Accepted Answer

A) True 
 B)False

Question 20

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) None of the above
F) B) and C)

Exam 20: Infectious Diseases Affecting the Cardiovascular and Lymphatic Systems

The gram-negative bacillus associated with abscesses from cat bites or scratches is ______.

Correct Answer
verified

Which of the following is not true of bubonic plague?

Correct Answer
verified

Brucellosis is

Correct Answer
verified

Which of the following infectious agents and means of disposal are mismatched?

Correct Answer
verified

Which of the following statements regarding Q fever is incorrect?

Correct Answer
verified

At the blood donation facility,you are completing an information form.The form asks about your health history and includes a question about whether you have ever had malaria or visited a country where malaria is endemic.Why is this information relevant?

Correct Answer
verified

Acute endocarditis is most commonly contracted through ______.

Correct Answer
verified

Which of the following are features that make Bacillus anthracis a potential bioterrorism weapon?

Correct Answer
verified

Correct Answer
verified

Which of the following statements is incorrect regarding malaria?

Correct Answer
verified

Lyme disease involves

Correct Answer
verified

Which of the following statements regarding erhlichiosis is incorrect?

Correct Answer
verified

The most common causative agent of acute endocarditis is ______.

Correct Answer
verified

Control of rodent populations is important for preventing ______.

Correct Answer
verified

Pasteurization of milk helps to prevent ______.

Correct Answer
verified

The fibrous sac that encloses the heart is the ______.

Correct Answer
verified

Which of these diseases would most likely be identified by viewing a stained blood smear in a light microscope?

Correct Answer
verified

Most cases of sepsis are caused by ______.

Correct Answer
verified

The cardiovascular and lymphatic systems have no normal biota.

Correct Answer
verified

Which of the following is a hemorrhagic fever?

Correct Answer
verified

Exam 20: Infectious Diseases Affecting the Cardiovascular and Lymphatic Systems

The gram-negative bacillus associated with abscesses from cat bites or scratches is ______.

Correct AnswerverifiedShow Answer

Which of the following is not true of bubonic plague?

Correct AnswerverifiedShow Answer

Brucellosis is

Correct AnswerverifiedShow Answer

Which of the following infectious agents and means of disposal are mismatched?

Correct AnswerverifiedShow Answer

Which of the following statements regarding Q fever is incorrect?

Correct AnswerverifiedShow Answer

At the blood donation facility,you are completing an information form.The form asks about your health history and includes a question about whether you have ever had malaria or visited a country where malaria is endemic.Why is this information relevant?

Correct AnswerverifiedShow Answer

Acute endocarditis is most commonly contracted through ______.

Correct AnswerverifiedShow Answer

Which of the following are features that make Bacillus anthracis a potential bioterrorism weapon?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which of the following statements is incorrect regarding malaria?

Correct AnswerverifiedShow Answer

Lyme disease involves

Correct AnswerverifiedShow Answer

Which of the following statements regarding erhlichiosis is incorrect?

Correct AnswerverifiedShow Answer

The most common causative agent of acute endocarditis is ______.

Correct AnswerverifiedShow Answer

Control of rodent populations is important for preventing ______.

Correct AnswerverifiedShow Answer

Pasteurization of milk helps to prevent ______.

Correct AnswerverifiedShow Answer

The fibrous sac that encloses the heart is the ______.

Correct AnswerverifiedShow Answer

Which of these diseases would most likely be identified by viewing a stained blood smear in a light microscope?

Correct AnswerverifiedShow Answer

Most cases of sepsis are caused by ______.

Correct AnswerverifiedShow Answer

The cardiovascular and lymphatic systems have no normal biota.

Correct AnswerverifiedShow Answer

Which of the following is a hemorrhagic fever?

Correct AnswerverifiedShow Answer

Correct Answer
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