Question 1

What disease does Chlamydophila psittaci cause in humans?

Accepted Answer

A)   Conjunctivitis
B)   Endocarditis
C)   Parrot fever
D)   Bird flu

Question 2

What organism's unique life cycle contains an elementary body (EB)  and a reticulate body (RB) ?

Accepted Answer

A)   Haemophilus
B)   Chlamydia
C)   Ureaplasma
D)   Mycoplasma

Question 3

All of the following diseases are associated with Chlamydia trachomatis, except

Accepted Answer

A)   undulant fever.
B)   urethritis.
C)   conjunctivitis.
D)   LGV.

Question 4

Diseases caused by rickettsial organisms are typically transmitted to humans by

Accepted Answer

A)   ingestion of contaminated food.
B)   an arthropod vector.
C)   animal bites.
D)   inhalation of aerosols.

Question 5

What organism causes Rocky Mountain spotted fever?

Accepted Answer

A)   Rickettsia prowazekii
B)   R. typhi
C)   R. canada
D)   R. rickettsii

Question 6

What is the name of the test used to detect rickettsial agents?

Accepted Answer

A)   Levy-Jennings
B)   Mueller-Hinton
C)   Weil-Felix
D)   Watson-Crick

Question 7

Why are antibody detection methods for Chlamydia trachomatis infection severely limited in the knowledge they provide the physician?

Accepted Answer

A)   Because C. trachomatis is an intracellular parasite, the body does not produce antibodies against it.
B)   Only IgE antibodies are produced against C. trachomatis.
C)   Many people have antibodies from previous infections, and local infections do not cause great increases in antibody levels.
D)   All of the above.

Question 8

Chlamydia trachomatis is the infectious agent in all the following conditions in humans, except

Accepted Answer

A)   trachoma.
B)   urogenital infections.
C)   lymphogranuloma venereum (LGV) .
D)   pharyngitis.

Question 9

An invasive genital disease associated with buboes in the groin describes an infection caused by

Accepted Answer

A)   Rickettsia conorii.
B)   Rickettsia rickettsii.
C)   Chlamydophila psittaci.
D)   Chlamydia trachomatis.

Question 10

What disease, caused by Chlamydia trachomatis, is considered a sexually transmitted disease where the organisms enter the lymph nodes near the genital tract, resulting in bubo formation and ultimately rupturing the lymph node?

Accepted Answer

A)   LGV
B)   Trachoma
C)   Pelvic inflammatory disease (PI
D)  
D)   Conjunctivitis

Question 11

All of the following are urogenital infections in men, produced by Chlamydia trachomatis, except

Accepted Answer

A)   epididymitis.
B)   orchitis.
C)   prostatitis.
D)   nongonococcal urethritis (NGU) . B

Question 12

Fifty years after his release from a concentration camp, a man develops signs and symptoms of typhus. He currently has no known contacts or source of disease exposure; however, he may have had it in 1945 when he experienced similar symptoms. What is the most likely current diagnosis?

Accepted Answer

A)   Oroya fever
B)   Q fever
C)   Rocky Mountain spotted fever
D)   Brill-Zinsser syndrome

Question 13

What is the preferred technique to rapidly detect Chlamydia trachomatis in clinical specimens?

Accepted Answer

A)   Enzyme immunoassay (EI
A)  
B)   Nucleic acid amplification test (NAAT) 
C)   Cell culture
D)   Cytologic methods

Question 14

A young man goes to his physician complaining of a discharge from his penis. The physician collects a slide for Gram stain and a swab for culture and sends them to the laboratory. The Gram stain reveals greater than 25 white blood cells/high-power field, no bacteria seen. The culture results after 48 hours show no growth. What is the most probable diagnosis and the organism responsible?

Accepted Answer

A)   Urethritis, Streptococcus pneumoniae
B)   Epididymitis, Moraxella
C)   Nongonococcal urethritis, Neisseria meningitidis
D)   Nongonococcal urethritis, Chlamydia trachomatis D

Question 15

Chlamydia trachomatis produces all the following conditions in adult women, except

Accepted Answer

A)   PID
B)   salpingitis
C)   bacterial vaginosis
D)   endometritis

Question 16

What organism causes epidemic louseborne typhus?

Accepted Answer

A)   Rickettsia typhi
B)   R. canada
C)   R. rickettsii
D)   R. prowazekii

Question 17

What has an outer membrane similar to that of many gram-negative bacteria, with the most prominent feature being the major outer membrane protein?

Accepted Answer

A)   Haemophilus
B)   RB
C)   EB
D)   Intracellular parasites

Question 18

What testing method is the method of choice for detecting antibodies to Chlamydophila pneumoniae?

Accepted Answer

A)   DFA
B)   Microimmunofluorescence
C)   Complement fixation
D)   Latex agglutination B

Question 19

What organism causes endemic typhus?

Accepted Answer

A)   Rickettsia typhi
B)   R. canada
C)   R. rickettsii
D)   R. prowazekii

Question 20

Infants can contract all the following chlamydial infections when passing through the birth canal, except

Accepted Answer

A)   conjunctivitis.
B)   nasopharyngeal infections.
C)   pneumonia.
D)   endocarditis.

Exam 24: Chlamydia, Rickettsia, and Similar Organisms

What disease does Chlamydophila psittaci cause in humans?

Correct Answer
verified

What organism's unique life cycle contains an elementary body (EB) and a reticulate body (RB) ?

Correct Answer
verified

All of the following diseases are associated with Chlamydia trachomatis, except

Correct Answer
verified

Diseases caused by rickettsial organisms are typically transmitted to humans by

Correct Answer
verified

What organism causes Rocky Mountain spotted fever?

Correct Answer
verified

What is the name of the test used to detect rickettsial agents?

Correct Answer
verified

Why are antibody detection methods for Chlamydia trachomatis infection severely limited in the knowledge they provide the physician?

Correct Answer
verified

Chlamydia trachomatis is the infectious agent in all the following conditions in humans, except

Correct Answer
verified

An invasive genital disease associated with buboes in the groin describes an infection caused by

Correct Answer
verified

What disease, caused by Chlamydia trachomatis, is considered a sexually transmitted disease where the organisms enter the lymph nodes near the genital tract, resulting in bubo formation and ultimately rupturing the lymph node?

Correct Answer
verified

All of the following are urogenital infections in men, produced by Chlamydia trachomatis, except

Correct Answer
verified
B

Fifty years after his release from a concentration camp, a man develops signs and symptoms of typhus. He currently has no known contacts or source of disease exposure; however, he may have had it in 1945 when he experienced similar symptoms. What is the most likely current diagnosis?

Correct Answer
verified

What is the preferred technique to rapidly detect Chlamydia trachomatis in clinical specimens?

Correct Answer
verified

Correct Answer
verified
D

Chlamydia trachomatis produces all the following conditions in adult women, except

Correct Answer
verified

What organism causes epidemic louseborne typhus?

Correct Answer
verified

What has an outer membrane similar to that of many gram-negative bacteria, with the most prominent feature being the major outer membrane protein?

Correct Answer
verified

What testing method is the method of choice for detecting antibodies to Chlamydophila pneumoniae?

Correct Answer
verified
B

What organism causes endemic typhus?

Correct Answer
verified

Infants can contract all the following chlamydial infections when passing through the birth canal, except

Correct Answer
verified

Exam 24: Chlamydia, Rickettsia, and Similar Organisms

What disease does Chlamydophila psittaci cause in humans?

Correct AnswerverifiedShow Answer

What organism's unique life cycle contains an elementary body (EB) and a reticulate body (RB) ?

Correct AnswerverifiedShow Answer

All of the following diseases are associated with Chlamydia trachomatis, except

Correct AnswerverifiedShow Answer

Diseases caused by rickettsial organisms are typically transmitted to humans by

Correct AnswerverifiedShow Answer

What organism causes Rocky Mountain spotted fever?

Correct AnswerverifiedShow Answer

What is the name of the test used to detect rickettsial agents?

Correct AnswerverifiedShow Answer

Why are antibody detection methods for Chlamydia trachomatis infection severely limited in the knowledge they provide the physician?

Correct AnswerverifiedShow Answer

Chlamydia trachomatis is the infectious agent in all the following conditions in humans, except

Correct AnswerverifiedShow Answer

An invasive genital disease associated with buboes in the groin describes an infection caused by

Correct AnswerverifiedShow Answer

What disease, caused by Chlamydia trachomatis, is considered a sexually transmitted disease where the organisms enter the lymph nodes near the genital tract, resulting in bubo formation and ultimately rupturing the lymph node?

Correct AnswerverifiedShow Answer

All of the following are urogenital infections in men, produced by Chlamydia trachomatis, except

Correct AnswerverifiedB

Fifty years after his release from a concentration camp, a man develops signs and symptoms of typhus. He currently has no known contacts or source of disease exposure; however, he may have had it in 1945 when he experienced similar symptoms. What is the most likely current diagnosis?

Correct AnswerverifiedShow Answer

What is the preferred technique to rapidly detect Chlamydia trachomatis in clinical specimens?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedD

Chlamydia trachomatis produces all the following conditions in adult women, except

Correct AnswerverifiedShow Answer

What organism causes epidemic louseborne typhus?

Correct AnswerverifiedShow Answer

What has an outer membrane similar to that of many gram-negative bacteria, with the most prominent feature being the major outer membrane protein?

Correct AnswerverifiedShow Answer

What testing method is the method of choice for detecting antibodies to Chlamydophila pneumoniae?

Correct AnswerverifiedB

What organism causes endemic typhus?

Correct AnswerverifiedShow Answer

Infants can contract all the following chlamydial infections when passing through the birth canal, except

Correct AnswerverifiedShow Answer

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B

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D

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B

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