Question 1

The most common vector-borne disease in North America and Europe transmitted by the bite of Ixodes ticks is caused by

Accepted Answer

A)  Leptospira interrogans.
B)  Borrelia burgdorferi.
C)  Treponema carateum.
D)  Rickettsia rickettsii.E) None of the above
F) A) and B)

Question 2

Long, slender, helically curved, gram-negative bacilli that present with tight coils are identified as belonging to which species?

Accepted Answer

A)  Treponema
B)  Leptospira
C)  Borrelia
D)  CoxiellaE) A) and D)
F) C) and D)

Question 3

Late, or tertiary syphilis includes the following symptoms:

Accepted Answer

A)  fever, weight loss, malaise, loss of appetite, and a widespread rash.
B)  the appearance of a chancre at the site of inoculation and dissemination of the organism.
C)  tissue destruction, central nervous disease, cardiovascular abnormalities, eye disease, and granuloma-like lesions.
D)  subclinical but not necessarily dormant, at which time diagnosis can be made only by serologic tests.E) None of the above
F) B) and C)

Question 4

Systemic symptoms such as fever, weight loss, malaise, and loss of appetite can be present along with a widespread rash can be seen in patients suffering from

Accepted Answer

A)  primary syphilis.
B)  secondary syphilis.
C)  tertiary syphilis.
D)  terminal stage syphilis.E) None of the above
F) A) and B)

Question 5

Compared to other spirochetes, Treponema can be described as

Accepted Answer

A)  long, more slender, with hooked ends.
B)  somewhat thicker with fewer and looser coils.
C)  long, more slender, with tight coils.
D)  somewhat thicker than treponemes with fewer and looser coils.E) All of the above
F) B) and C)

Question 6

A self-limiting illness and the most common clinical syndrome associated with leptospires that includes fever, headache, myalgia, and aseptic meningitis in the immune stage is called

Accepted Answer

A)  icteric leptospirosis.
B)  anicteric leptospirosis.
C)  Weil's disease.
D)  syphilis.E) A) and B)
F) A) and C) B

Question 7

Long, slender, helically curved, gram-negative bacilli that present with hooked ends are identified as belonging to which species?

Accepted Answer

A)  Treponema
B)  Leptospira
C)  Borrelia
D)  CoxiellaE) A) and B)
F) None of the above

Question 8

The most common vector-borne disease in North America and Europe transmitted by the bite of Ixodes ticks is caused by Borrelia burgdorferi and is called

Accepted Answer

A)  Weil's disease.
B)  Lyme disease.
C)  icteric leptospirosis.
D)  Vincent's disease.E) None of the above
F) B) and D)

Question 9

The most severe illness associated with leptospires, with symptoms caused by liver, kidney, and/or vascular dysfunction with lethal pulmonary hemorrhage and sometimes death is called

Accepted Answer

A)  icteric leptospirosis.
B)  anicteric leptospirosis.
C)  Vincent's disease.
D)  syphilis.E) C) and D)
F) B) and D)

Question 10

Primary syphilis includes the following symptoms:

Accepted Answer

A)  fever, weight loss, malaise, loss of appetite, and a widespread rash
B)  the appearance of a chancre at the site of inoculation and dissemination of the organism.
C)  tissue destruction, central nervous disease, cardiovascular abnormalities, eye disease, and granuloma-like lesions.
D)  subclinical but not necessarily dormant, at which time diagnosis can be made only by serologic tests.E) C) and D)
F) A) and B) B

Question 11

A stage of venereal syphilis characterized by the appearance of a chancre is known as

Accepted Answer

A)  primary syphilis.
B)  secondary syphilis.
C)  late syphilis.
D)  tertiary syphilis.E) C) and D)
F) A) and B)

Question 12

Secondary syphilis includes the following symptoms:

Accepted Answer

A)  fever, weight loss, malaise, loss of appetite, and widespread rash.
B)  the appearance of a chancre at the site of inoculation and dissemination of the organism.
C)  tissue destruction, central nervous disease, cardiovascular abnormalities, eye disease, and granuloma-like lesions.
D)  subclinical but not necessarily dormant, at which time diagnosis can be made only by serologic tests.E) A) and B)
F) B) and C) A

Question 13

Nontreponemal antibodies are those that

Accepted Answer

A)  are produced against antigens of the organisms themselves.
B)  are those that are produced by infected patients against components of mammalian cells.
C)  are those that are produced by the organism that cause the systemic destruction of the disease.
D)  are also called reaginic antibodies.E) All of the above
F) A) and B)

Question 14

Compared to other spirochetes, Borrelia can be described as

Accepted Answer

A)  long, more slender, with hooked ends.
B)  somewhat thicker with fewer and looser coils.
C)  long, more slender, with tight coils.
D)  somewhat thicker than treponemes with fewer and looser coils.E) None of the above
F) B) and D)

Question 15

A specific treponemal serologic test performed by overlaying whole treponemes that are fixed to a slide with serum from patients suspected of having syphilis and using fluorescein-conjugated antihuman antibody reagent to detect specific antitreponemal antibodies is called

Accepted Answer

A)  RPR (rapid plasma reagin)  test.
B)  FTA-ABS (fluorescent treponemal antibody absorption)  test.
C)  VDRL (Venereal Disease Research Laboratory)  test.
D)  TP-PA (T.pallidum particle agglutination)  test.E) B) and D)
F) A) and D)

Question 16

Compared to other spirochetes, Leptospira can be described as

Accepted Answer

A)  long, more slender, with hooked ends.
B)  somewhat thicker with fewer and looser coils and hooked ends.
C)  long, more slender, with tight coils.
D)  somewhat thicker than treponemes with fewer and looser coils.E) A) and B)
F) A) and D)

Question 17

Treponemal antibodies are those that

Accepted Answer

A)  are produced against antigens of the organisms themselves.
B)  are those that are produced by infected patients against components of mammalian cells.
C)  are those that are produced by the organism that cause the systemic destruction of the disease.
D)  are also called reaginic antibodies.E) None of the above
F) A) and D)

Question 18

A test that utilizes gelatin particles sensitized with T.pallidum subsp.pallidum antigens to detect specific antitreponemal antibodies in patient serum is called

Accepted Answer

A)  RPR (rapid plasma reagin)  test.
B)  FTA-ABS (fluorescent treponemal antibody absorption)  test.
C)  VDRL (Venereal Disease Research Laboratory)  test.
D)  TP-PA (T.pallidum particle agglutination)  test.E) C) and D)
F) B) and C)

Question 19

A stage of venereal syphilis characterized by fever, weight loss, malaise, loss of appetite, and a widespread rash is known as

Accepted Answer

A)  primary syphilis.
B)  secondary syphilis.
C)  late syphilis.
D)  tertiary syphilis.E) A) and B)
F) A) and C)

Question 20

A nontreponemal flocculation serologic test in which soluble antigen particles are coalesced to form larger particles that are visible as clumps when they are aggregated by antibody is called

Accepted Answer

A)  NTF (nontreponemal flocculation) .
B)  FTA-ABS (fluorescent treponemal antibody absorption)  test.
C)  VDRL (Venereal Disease Research Laboratory)  test.
D)  TP-PA (T.pallidum particle agglutination)  test.E) C) and D)
F) None of the above

Exam 45: The Spirochetes

The most common vector-borne disease in North America and Europe transmitted by the bite of Ixodes ticks is caused by

Correct AnswerverifiedShow Answer

Long, slender, helically curved, gram-negative bacilli that present with tight coils are identified as belonging to which species?

Correct AnswerverifiedShow Answer

Late, or tertiary syphilis includes the following symptoms:

Correct AnswerverifiedShow Answer

Systemic symptoms such as fever, weight loss, malaise, and loss of appetite can be present along with a widespread rash can be seen in patients suffering from

Correct AnswerverifiedShow Answer

Compared to other spirochetes, Treponema can be described as

Correct AnswerverifiedShow Answer

A self-limiting illness and the most common clinical syndrome associated with leptospires that includes fever, headache, myalgia, and aseptic meningitis in the immune stage is called

Correct AnswerverifiedB

Long, slender, helically curved, gram-negative bacilli that present with hooked ends are identified as belonging to which species?

Correct AnswerverifiedShow Answer

The most common vector-borne disease in North America and Europe transmitted by the bite of Ixodes ticks is caused by Borrelia burgdorferi and is called

Correct AnswerverifiedShow Answer

The most severe illness associated with leptospires, with symptoms caused by liver, kidney, and/or vascular dysfunction with lethal pulmonary hemorrhage and sometimes death is called

Correct AnswerverifiedShow Answer

Primary syphilis includes the following symptoms:

Correct AnswerverifiedB

A stage of venereal syphilis characterized by the appearance of a chancre is known as

Correct AnswerverifiedShow Answer

Secondary syphilis includes the following symptoms:

Correct AnswerverifiedA

Nontreponemal antibodies are those that

Correct AnswerverifiedShow Answer

Compared to other spirochetes, Borrelia can be described as

Correct AnswerverifiedShow Answer

A specific treponemal serologic test performed by overlaying whole treponemes that are fixed to a slide with serum from patients suspected of having syphilis and using fluorescein-conjugated antihuman antibody reagent to detect specific antitreponemal antibodies is called

Correct AnswerverifiedShow Answer

Compared to other spirochetes, Leptospira can be described as

Correct AnswerverifiedShow Answer

Treponemal antibodies are those that

Correct AnswerverifiedShow Answer

A test that utilizes gelatin particles sensitized with T.pallidum subsp.pallidum antigens to detect specific antitreponemal antibodies in patient serum is called

Correct AnswerverifiedShow Answer

A stage of venereal syphilis characterized by fever, weight loss, malaise, loss of appetite, and a widespread rash is known as

Correct AnswerverifiedShow Answer

A nontreponemal flocculation serologic test in which soluble antigen particles are coalesced to form larger particles that are visible as clumps when they are aggregated by antibody is called

Correct AnswerverifiedShow Answer

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