Question 1

What percentage of hepatitis B infections are transmitted through sexual contact?

Accepted Answer

A)  10% 
B)  25% 
C)  50% 
D)  80% 
A)  10% 
B)  25% 
C)  50% 
D)  80% C

Question 2

Why are there so many cases of genital herpes in the Unites States?

Accepted Answer

A)  Condoms cannot prevent spread of genital herpes. 
B)  There are not effective treatments. 
C)  Lesions shed virus when asymptomatic. 
D)  Virus persists in the environment for many days. 
A)  Condoms cannot prevent spread of genital herpes. 
B)  There are not effective treatments. 
C)  Lesions shed virus when asymptomatic. 
D)  Virus persists in the environment for many days. C

Question 3

What cells are found in BV?

Accepted Answer

A)  Clue cells 
B)  Lymphocytes 
C)  Macrophages 
D)  Squamous epithelial cells 
A)  Clue cells 
B)  Lymphocytes 
C)  Macrophages 
D)  Squamous epithelial cells A

Question 4

How is genital herpes transmitted?

Accepted Answer

A)  Hot tubs contaminated with HSV 
B)  Towels used by people with HSV infection 
C)  Contaminated toilet seats 
D)  Sexual contact with secretions from infected sites 
A)  Hot tubs contaminated with HSV 
B)  Towels used by people with HSV infection 
C)  Contaminated toilet seats 
D)  Sexual contact with secretions from infected sites

Question 5

What percentage of women patients who are positive for Neisseria gonorrhoeae typically also have genital chlamydia?

Accepted Answer

A)  30% 
B)  42% 
C)  60% 
D)  77% 
A)  30% 
B)  42% 
C)  60% 
D)  77%

Question 6

What is required for culturing Chlamydia?

Accepted Answer

A)  Embryonated chicken eggs 
B)  Thayer-Martin, modified media 
C)  Martin-Lewis media 
D)  Tissue cultures 
A)  Embryonated chicken eggs 
B)  Thayer-Martin, modified media 
C)  Martin-Lewis media 
D)  Tissue cultures

Question 7

What condition is characterized by an overgrowth of anaerobic bacteria and a decrease in lactobacilli in the vagina?

Accepted Answer

A)  Endometritis 
B)  Syphilis 
C)  Gonorrhea 
D)  BV 
A)  Endometritis 
B)  Syphilis 
C)  Gonorrhea 
D)  BV

Question 8

What is the advantage over cultures of performing nucleic acid amplification tests (NAATs) for cases of gonococcal urethritis?

Accepted Answer

A)  There is no advantage. 
B)  You can also diagnose syphilis. 
C)  You can also find Cryptosporidium. 
D)  The tests are highly sensitive and specific. 
A)  There is no advantage. 
B)  You can also diagnose syphilis. 
C)  You can also find Cryptosporidium. 
D)  The tests are highly sensitive and specific.

Question 9

All of the following conditions can occur in women with undiagnosed cervical gonorrhea, except

Accepted Answer

A)  salpingitis. 
B)  endometritis. 
C)  pelvic inflammatory disease (PI
D) . 
D)  pharyngitis. 
A)  salpingitis. 
B)  endometritis. 
C)  pelvic inflammatory disease (PI
D) . 
D)  pharyngitis.

Question 10

Which of the following is a symptom of tertiary syphilis?

Accepted Answer

A)  Gummas 
B)  Chancre 
C)  Genital warts 
D)  Strokes 
A)  Gummas 
B)  Chancre 
C)  Genital warts 
D)  Strokes

Question 11

What makes cervicitis difficult to diagnose?

Accepted Answer

A)  Lack of well-recognized symptoms 
B)  Inability to culture causative agents 
C)  Most causes are noninfectious 
D)  Lengthy incubation period 
A)  Lack of well-recognized symptoms 
B)  Inability to culture causative agents 
C)  Most causes are noninfectious 
D)  Lengthy incubation period

Question 12

Which of the following is a symptom for secondary syphilis?

Accepted Answer

A)  Chancre 
B)  Purulent discharge 
C)  Petechiae 
D)  Perianal condylomata lata 
A)  Chancre 
B)  Purulent discharge 
C)  Petechiae 
D)  Perianal condylomata lata

Question 13

Nongonococcal urethritis is most commonly caused by which of the following organisms?

Accepted Answer

A)  Haemophilus ducreyi 
B)  Trichomonas vaginalis 
C)  Chlamydia trachomatis 
D)  Ureaplasma urealyticum 
A)  Haemophilus ducreyi 
B)  Trichomonas vaginalis 
C)  Chlamydia trachomatis 
D)  Ureaplasma urealyticum

Question 14

PID is a complication occasionally seen following infections caused by

Accepted Answer

A)  human papillomavirus (HPV). 
B)  herpes simplex virus (HSV). 
C)  Haemophilus ducreyi. 
D)  Chlamydia trachomatis. 
A)  human papillomavirus (HPV). 
B)  herpes simplex virus (HSV). 
C)  Haemophilus ducreyi. 
D)  Chlamydia trachomatis.

Question 15

Many women who have BV complain of a fishy odor from vaginal secretions. What causes the odor?

Accepted Answer

A)  Carbolic acid 
B)  Amines 
C)  Urea 
D)  Alcohols 
A)  Carbolic acid 
B)  Amines 
C)  Urea 
D)  Alcohols

Question 16

What organism causes chancroid?

Accepted Answer

A)  Treponema pallidum 
B)  Haemophilus ducreyi 
C)  Mobiluncus sp. 
D)  Gardnerella vaginalis 
A)  Treponema pallidum 
B)  Haemophilus ducreyi 
C)  Mobiluncus sp. 
D)  Gardnerella vaginalis

Question 17

Although Neisseria gonorrhoeae usually grows in the cervix and male urethra, all the following sites can support growth, except

Accepted Answer

A)  mouth. 
B)  ears. 
C)  eyes. 
D)  anus. 
A)  mouth. 
B)  ears. 
C)  eyes. 
D)  anus.

Question 18

What is the infective particle of Chlamydia?

Accepted Answer

A)  Elementary body 
B)  Initial body 
C)  Negri body 
D)  Spore 
A)  Elementary body 
B)  Initial body 
C)  Negri body 
D)  Spore

Question 19

A microbiologist is reading a vaginal culture. She sees the very white colonies that are $\gamma$-hemolytic on a blood agar plate but appear to have feet. What organism could this possibly be?

Accepted Answer

A)  Yeast 
B)  Gram-positive cocci 
C)  Gram-negative rods 
D)  Haemophilus influenzae 
A)  Yeast 
B)  Gram-positive cocci 
C)  Gram-negative rods 
D)  Haemophilus influenzae

Question 20

Which of the following is the most common causative agent of urethritis?

Accepted Answer

A)  Staphylococcus aureus 
B)  Neisseria gonorrhoeae 
C)  Clostridium perfringens 
D)  Haemophilus influenzae 
A)  Staphylococcus aureus 
B)  Neisseria gonorrhoeae 
C)  Clostridium perfringens 
D)  Haemophilus influenzae

Exam 38: Genital Infections and Sexually Transmitted Infections

What percentage of hepatitis B infections are transmitted through sexual contact?

Why are there so many cases of genital herpes in the Unites States?

What cells are found in BV?

How is genital herpes transmitted?

What percentage of women patients who are positive for Neisseria gonorrhoeae typically also have genital chlamydia?

What is required for culturing Chlamydia?

What condition is characterized by an overgrowth of anaerobic bacteria and a decrease in lactobacilli in the vagina?

What is the advantage over cultures of performing nucleic acid amplification tests (NAATs) for cases of gonococcal urethritis?

All of the following conditions can occur in women with undiagnosed cervical gonorrhea, except

Which of the following is a symptom of tertiary syphilis?

What makes cervicitis difficult to diagnose?

Which of the following is a symptom for secondary syphilis?

Nongonococcal urethritis is most commonly caused by which of the following organisms?

PID is a complication occasionally seen following infections caused by

Many women who have BV complain of a fishy odor from vaginal secretions. What causes the odor?

What organism causes chancroid?

Although Neisseria gonorrhoeae usually grows in the cervix and male urethra, all the following sites can support growth, except

What is the infective particle of Chlamydia?

A microbiologist is reading a vaginal culture. She sees the very white colonies that are γ\gammaγ -hemolytic on a blood agar plate but appear to have feet. What organism could this possibly be?

Which of the following is the most common causative agent of urethritis?

Bacterial Cell Structure, Physiology, Metabolism, and Genetics

Hostparasite Interaction

The Laboratory Role in Infection Control

Control of Microorganisms

Performance Improvement in the Microbiology Laboratory

Specimen Collection and Processing

Microscopic Examination of Materials From Infected Sites

Use of Colony Morphology for the Presumptive Identification of Microorganisms

Biochemical Identification of Gram-Negative Bacteria

Immunodiagnosis of Infectious Diseases

Applications of Molecular Diagnostics

Antimicrobial Agent Mechanisms of Action and Resistance Mechanisms

Antimicrobial Susceptibility Testing

Staphylococci

Streptococcus, Enterococcus, and Other Catalase-Negative, Gram-Positive Cocci

Aerobic Gram-Positive Bacilli

Neisseria Species and Moraxella Catarrhalis

Haemophilus, Hacek, Legionella, and Other Fastidious Gram-Negative Bacilli

Enterobacteriaceae

Vibrio, Aeromonas, and Campylobacter Species

Nonfermenting and Miscellaneous Gram-Negative Bacilli

Anaerobes of Clinical Importance

The Spirochetes

Chlamydia, Rickettsia, and Similar Organisms

Mycoplasma and Ureaplasma

Mycobacterium Tuberculosis and Nontuberculous Mycobacteria

Medically Significant Fungi

Diagnostic Parasitology

Clinical Virology

Agents of Bioterror and Forensic Microbiology

Biofilms: Architects of Disease

Upper and Lower Respiratory Tract Infections

Skin and Soft Tissue Infections

Gastrointestinal Infections and Food Poisoning

Infections of the Central Nervous System

Bacteremia and Sepsis

Urinary Tract Infections

Infections in Special Populations

Zoonotic Diseases

Ocular Infections

Filters

A microbiologist is reading a vaginal culture. She sees the very white colonies that are $\gamma$ -hemolytic on a blood agar plate but appear to have feet. What organism could this possibly be?