Ch. 21 Questions

Question 1

Treponema pallidum is cultured in/on

a) blood agar
b) animal tissues
c) serum broth
d) eggs

Answer 1

b) animal tissues

Question 2

A gumma is

a) the primary lesion of syphilis
b) a syphilitic tumor
c) the result of congenital syphilis
d) a damaged aorta

Answer 2

a) the primary lesion of syphilis

Question 3

The treatment of choice for syphilis is

a) chloramphenicol
b) antiserum
c) penicillin
d) sulfa drugs

Answer 3

c) penicillin

Question 4

Which of the treponematoses is/are NOT (an) STD(s)?

a) yaws
b) pinta
c) syphilis
d) both a and b

Answer 4

d) both a and b

Question 5

Lyme disease is caused by______ and spread by______ .

a) Borrelia recurrentis, lice
b) Borrelia hermsii, ticks
c) Borrelia burgdorferi, fleas
d) Borrelia burgdorferi, ticks

Answer 5

d) Borrelia burgdorferi, ticks

Question 6

Which of the following conditions may occur in untreated Lyme disease?

a) arthritis
b) rash
c) heart disorder
d) a and b
e) all of these

Answer 6

e) all of these

Question 7

Relapsing fever is spread by

a) lice
b) ticks
c) animal urine
d) a and b

Answer 7

d) a and b

Question 8

The primary habitat of Vibrio cholerae is

a) intestine of humans
b) intestine of animals
c) natural waters
d) exoskeletons of crustaceans

Answer 8

c) natural waters

Question 9

The most effective therapy for cholera is

a) oral doxycycline
b) oral rehydration therapy
c) antiserum injection
d) oral vaccine

Answer 9

b) oral rehydration therapy

Question 10

Rickettsias and chlamydias are similar in being

a) free of a cell wall
b) the cause of eye infections
c) carried by arthropod vectors
d) obligate intracellular bacteria

Answer 10

d) obligate intracellular bacteria

Question 11

Which of the following is not an arthropod vector of rickettsioses?

a) mosquito
b) louse
c) tick
d) flea

Answer 11

a) mosquito

Question 12

Chlamydiosis caused by C. trachomatis attacks which structure(s)?

a) eye
b) urethra
c) fallopian tubes
d) all of these

Answer 12

d) all of these

Question 13

What stage(s) of Chlamydia is/are infectious?

a) reticulate body
b) elementary body
c) vegetative cell
d) both a and b

Answer 13

b) elementary body

Question 14

Psitticosis is a______ infection associated with______ .

a) rickettsial, parrots
b) chlamydial, mice
c) chlamydial, birds
d) rickettsial, flies

Answer 14

c) chlamydial, birds

Question 15

Mycoplasmas attack the ______ of host cells.

a) nucleus
b) cell walls
c) ribosomes
d) cell membranes

Answer 15

d) cell membranes

Question 16

The earliest process at the basis of most dental disease is

a) acquired pellicle
b) acid release
c) enamel destruction
d) plaque accumulation

Answer 16

d) plaque accumulation

Question 17

Dental caries are directly due to

a) microbial acid etching away tooth structures
b) buildup of calculus
c) death of tooth by root infection
d) the acquired pellicle

Answer 17

a) microbial acid etching away tooth structures

Question 18

Necrotizing ulcerative gingivitis is a ______ infection.

a) contagious
b) mixed
c) spirochete
d) systemic

Answer 18

b) mixed

Question 19

______cholera a) eye
______ Lyme disease b) gastrointestinal tract
______ trachoma c) skin
______Campylobacter infection
______ gastric ulcers

Answer 19

b
c
a
b
b

Question 20

______ NUG a) respiratory tract
______ mycoplasma b) urogenital tract
______ syphilis c) oral cavity
______ leptospirosis d) skin
______ lymphogranuloma venereum e)

Answer 20

c
a
b
d
b

Question 21

______Q fever a) respiratory tract
______ psitticosis b) oral cavity
______ dental caries c) gastrointestinal tract

Answer 21

c
a
b

Question 22

A phone triage nurse answers a call from a client who reports being bitten by a deer tick. Which instructions does the nurse provide?

There is no need to seek care unless you see a red, circular rash at the site of the tick bite.

a) You need to start treatment with an antiviral drug immediately.
b) Deer ticks are not carriers of any diseases affecting humans.
c) You should be tested immediately for antibodies against Lyme disease.
d) See your health care provider if you feel malaise or achy.

Answer 22

d) See your health care provider if you feel malaise or achy.

Question 23

The nurse is caring for 24-year-old female diagnosed with syphilis. The client presents with a widespread, symmetric, maculopapular rash on the palms and soles. The nurse understands that the client is in which stage of infection?

a) primary syphilis
b) secondary syphilis
c) tertiary syphilis
d) quaternary syphilis

Answer 23

b) secondary syphilis