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MICRO CH 26

front 1

1) Normal microbiota of the adult vagina consist primarily of

A) Lactobacillus.

B) Streptococcus.

C) Mycobacterium.

back 1

A

front 2

2) Cystitis is most often caused by

A) Escherichia coli.

B) Leptospira interrogans.

C) Candida albicans.

back 2

A

front 3

3) Pyelonephritis may result from

A) urethritis.

B) cystitis.

C) ureteritis.

D) systemic infections.

E) All of the answers are correct.

back 3

E

front 4

4) All of the following result from N. gonorrhoeae infection. Which one leads to the others?

A) Antibody production is stopped.

B) CD4+ T lymphocytes do not activate.

C) There is an increased risk of other STIs.

D) Opa protein attaches to CD4+ T lymphocytes.

back 4

D

front 5

5) Pyelonephritis usually is caused by

A) Pseudomonas aeruginosa.

B) Proteus spp.

C) Escherichia coli.

back 5

C

front 6

6) The most common reservoir for leptospirosis within the United States is

A) humans.

B) water.

C) domestic dogs.

back 6

C

front 7

7) Which of the following is NOT primarily a sexually transmitted infection (STI)?

A) lymphogranuloma venereum

B) genital herpes

C) gonorrhea

D) chancroid

E) trichomoniasis

back 7

E

front 8

8) Which of the following is treated with penicillin?

A) genital herpes

B) genital warts

C) candidiasis

D) syphilis

back 8

D

front 9

9) Which of the following pairs is mismatched?

A) trichomoniasis — fungus

B) gonorrhea — gram-negative cocci

C) chancroid — gram-negative rod

back 9

A

front 10

10) One form of NGU is lymphogranuloma venereum caused by

A) Leptospira interrogans.

B) Chlamydia trachomatis.

C) Neisseria gonorrhoeae.

back 10

B

front 11

11) All of the following can cause congenital infection or infections of the newborn EXCEPT

A) syphilis.

B) gonorrhea.

C) nongonococcal urethritis.

D) genital herpes.

E) lymphogranuloma venereum.

back 11

E

front 12

12) Which of the following recurs at the initial site of infection?

A) gonorrhea

B) syphilis

C) genital herpes

back 12

C

front 13

13) Which of the following is diagnosed by detection of antibodies against the causative agent?

A) nongonococcal urethritis

B) gonorrhea

C) syphilis

back 13

C

front 14

14) Nongonococcal urethritis can be caused by all of the following EXCEPT

A) Mycoplasma homini.

B) Candida albicans.

C) Trichomonas vaginalis.

D) streptococci.

E) Neisseria gonorrhoeae.

back 14

E

front 15

15) Which of the following is caused by an opportunistic pathogen?

A) trichomoniasis

B) genital herpes

C) candidiasis

back 15

C

front 16

16) The pH of the adult vagina is acidic due to the conversion of ________ to ________ by bacteria.

A) glucose; ethanol

B) protein; acetic acid

C) glycogen; lactic acid

back 16

C

front 17

17) A urine sample collected directly from the urinary bladder

A) is sterile.

B) contains fewer than 100 pathogens/ml.

C) contains fewer than 10,000 pathogens/ml.

back 17

A

front 18

18) Most nosocomial infections of the urinary tract are caused by

A) Escherichia coli.

B) Enterococcus.

C) Proteus.

back 18

A

front 19

19) Which of the following is NOT an antimicrobial feature of the urinary system?

A) physiological valves found in the ureter

B) pH of the urine

C) flushing action of urine

D) the use of the urethra for seminal fluid in women

back 19

D

front 20

20) Which of the following is NOT a predisposing factors to cystitis in females?

A) the proximity of the anus to the urethra

B) the length of the urethra

C) sexual intercourse

D) poor personal hygiene

E) None of the answers is correct; all of these are predisposing factors.

back 20

E

front 21

21) The most common reportable disease in the United States is

A) cystitis.

B) lymphogranuloma venereum.

C) gonorrhea.

back 21

C

front 22

22) Which of the following is NOT a complication of gonorrhea?

A) arthritis

B) pelvic inflammatory disease

C) endocarditis

D) meningitis

E) None of the answers are correct; all of these are potential complications of gonorrhea.

back 22

E

front 23

23) Which of the following is the most difficult to treat with chemotherapeutic agents?
A) genital herpes
B) gonorrhea
C) syphilis

back 23

A

front 24

24) Vaginal itching and cheesy discharge are symptoms of

A) Gardnerella vaginosis.

B) genital herpes.

C) candidiasis.

back 24

C

front 25

25) Recurring vesicles on the surface of human skin are symptoms of

A) Gardnerella vaginosis.

B) genital herpes.

C) candidiasis.

back 25

B

front 26

26) Leukocytes at the infected site are a symptom of

A) Gardnerella vaginosis.

B) genital herpes.

C) candidiasis.

D) trichomoniasis.

back 26

D

front 27

27) Which of the following is caused by Chlamydia?

A) Gardnerella vaginosis

B) genital herpes

C) candidiasis

D) trichomoniasis

E) lymphogranuloma venereum

back 27

E

front 28

28) A positive LE test and 10,000 CFU/ml in urine indicates

A) cystitis.

B) gonorrhea.

C) urethritis.

D) pyelonephritis.

back 28

D

front 29

29) Which of the following diseases causes a skin rash, hair loss, malaise, and fever?

A) gonorrhea

B) syphilis

C) NGU

back 29

B

front 30

30) Staphylococcus saprophyticus causes

A) cystitis.

B) pyelonephritis.

C) vaginitis.

back 30

A

front 31

31) Which one of the following statements about genital warts is FALSE?

A) It is transmitted by direct contact.

B) It is caused by papillomaviruses.

C) It is always precancerous.

back 31

C

front 32

32) The most common NGU in the United States is treated with

A) penicillin.

B) cephalosporins.

C) acyclovir.

back 32

B

front 33

33) Which of the following statements about pelvic inflammatory disease is FALSE?

A) It can cause sterility and chronic pain.

B) It can be caused by N. gonorrhoeae.

C) It can be transmitted sexually.

D) It can be caused by C. trachomatis.

E) It can be caused by T. pallidum.

back 33

E

front 34

34) Which one of the following does NOT cause nongonococcal urethritis?

A) Chlamydia

B) Mycoplasma

C) Neisseria

back 34

C

front 35

35) Infants born to asymptomatic mothers with recurrent genital herpes are less likely to acquire herpesvirus at birth than infants born to newly infected mothers because

A) maternal antibodies offer protection.

B) the disease cannot be transmitted to newborns.

C) the disease is not communicable.

back 35

A

front 36

36) Which of the following is greater?

A) the number of reported cases of gonorrhea last year

B) the number of reported cases of AIDS last year

C) The number of reported cases of gonorrhea and AIDS are likely equal.

back 36

A

front 37

37) A patient presents with fever and extensive lesions of the labia minora. Her VDRL test was negative. What is the most likely treatment?

A) metronidazole

B) cephalosporins

C) acyclovir

back 37

C

front 38

38) A patient is experiencing profuse greenish-yellow, foul-smelling discharge from her vagina. She is complaining of itching and irritation. What is the most likely treatment?

A) metronidazole

B) cephalosporins

C) acyclovir

back 38

A

front 39

39) A 25-year-old man presented with fever, malaise, and a rash on his chest, arms, and feet. Which of the following causative agents is most likely to cause these symptoms?

A) Nesseria

B) HPV

C) HSV-2

D) Candida

E) Treponema

back 39

E

front 40

40) A 25-year-old man presented with fever, malaise, and a rash on his chest, arms, and feet. Which of the following will be most useful for a rapid diagnosis?

A) bacterial culture

B) microscopic examination of blood

C) serological test for antibodies

back 40

C

front 41

41) A 25-year-old man presented with fever, malaise, and a rash on his chest, arms, and feet. Diagnosis was based on serological testing. The patient then reported that he had an ulcer on his penis two months earlier. What stage of disease is the patient in?

A) NGU

B) primary

C) secondary

back 41

C

front 42

42) A 25-year-old male presented with fever, malaise, and a rash on his chest, arms, and feet. Diagnosis was based on serological testing. The patient then reported that he had an ulcer on his penis two months earlier. This disease can be treated with

A) acyclovir.

B) metronidazole.

C) miconazole.

D) penicillin.

back 42

D

front 43

43) A pelvic examination of a 23-year-old woman showed vesicles and ulcerated lesions on her labia. Cultures were negative for Neisseria and Chlamydia; the VDRL test was negative. Which treatment is appropriate?

A) acyclovir

B) metronidazole

C) miconazole

back 43

A

front 44

44) A pelvic examination of a 23-year-old woman showed vesicles and ulcerated lesions on her labia. Cultures were negative for Neisseria and Chlamydia; the VDRL test was negative. Which of the following is probable?

A) candidiasis

B) genital herpes

C) gonorrhea

back 44

B

front 45

45) Which of the following is treated with cephalosporins because the organism is resistant to penicillin and fluoroquinolones?

A) Mycoplasma hominis

B) Haemophilus ducreyi

C) Neisseria gonorrhoeae

back 45

C

front 46

1) Anatomically, women have more portals of entry in the reproductive system compared to men.

back 46

TRUE

front 47

2) Women and men typically have the same normal microbiota in their reproductive systems.

back 47

FALSE

front 48

3) A microbe that enters the vagina would likely cause cystitis if left untreated.

back 48

FALSE

front 49

4) Candida is a normal flora found in the majority (greater than 50%) of women.

back 49

FALSE

front 50

5) The male urethra is typically sterile.

back 50

TRUE

front 51

6) Genital candidiasis is a disease that only affects women.

back 51

FALSE

front 52

7) Trichomoniasis is the only known STI caused by a protozoan.

back 52

TRUE

front 53

8) The TORCH panel of tests is used to screen for diseases like syphilis.

back 53

TRUE

front 54

9) Only HSV-2 can cause genital herpes.

back 54

FALSE

front 55

10) Most UTI infections in the population are a result of catheterization in a hospital setting.

back 55

FALSE