finals chp 21-26 Flashcards
1
Q
1) Which of the following is NOT normal microbiota of the skin? A) Streptococcus B) Pityrosporum C)Staphylococcus D) Propionibacterium E) Corynebacterium
A
A) Streptococcus
2
Q
3) Which of the following pairs is mismatched?
A) Staphylococcus aureus / impetigo
B) Streptococcus pyogenes N/ erysipelas
C) Propionibacterium acnes N/ pimples
D) Pseudomonas aeruginosa N/ otitis externa
E) Str. pyogenes N toxic shock syndrome
A
D) Pseudomonas aeruginosa N/ otitis externa
3
Q
4) The etiologic agent of warts is A) Papillomavirus. B) Poxvirus. C) Herpesvirus. D) Parvovirus. E) Staphylococcus aureus .
A
A) Papillomavirus.
4
Q
5) Which of the following is NOT a characteristic of Pseudomonas aeruginosa? A) Gram- positive cell wall B) Oxidative metabolism C) Oxidase- positive D) Produce pyocyanin E) Rod shaped
A
A) Gram- positive cell wall
5
Q
6) Which of the following pairs is mismatched? A) Pustular rash N smallpox B) Koplik spots N rubella C) Papular rash N measles D) Vesicular rash N chickenpox E) Macular rash N fifth disease
A
B) Koplik spots N rubella
6
Q
7) Which of the following is NOT transmitted by the respiratory route? A) Smallpox B) Chickenpox C) Rubella D) Trichophyton E) Measles
A
Trichophyton
7
Q
9) Thrush and vaginitis are caused by A) Herpesvirus. B) Chlamydia trachomatis. C) Candida albicans. D) Staphylococcus aureus. E) Streptococcus pyogenes.
A
C) Candida albicans.
8
Q
14) A possible complication of herpetic keratitis is A) Encephalitis. B) Fever blisters. C) Subacute sclerosing panencephalitis. D) Congenital rubella syndrome. E) Macular rash.
A
A) Encephalitis.
9
Q
17) Which infection is NOT caused by Staphylococcus aureus? A) Pimples B) Sty C) Furuncle D) Carbuncle E) Acne
A
E) Acne
10
Q
18) Which of the following is NOT a characteristic used to identify Streptococcus pyogenes? A) Coagulase- positive B) Group A cell wall antigen C) Group M proteins D) Beta- hemolytic E) Cocci
A
A) Coagulase- positive
11
Q
20) In which of the following respects is measles similar to German measles (rubella)? A) Rash B) Etiologic agent C) Encephalitis as a complication D) Congenital complications E) In name only
A
E) In name only
12
Q
22) Which of the following statements about congenital rubella syndrome is false?
A) It is contracted in utero.
B) It may be fatal.
C) It may result in deafness, blindness, and mental retardation.
D) It doesn’t occur with subclinical infections.
E) All of the above are true.
A
D) It doesn’t occur with subclinical infections.
13
Q
23) The etiologic agent of chickenpox is A) Herpes simplex. B) Herpes zoster. C) HHV- 6. D) Parvovirus. E) Poxvirus.
A
B) Herpes zoster.
14
Q
26) The etiologic agent of fever blisters is A) Herpes simplex. B) Herpes zoster. C) HHV- 6. D) Parvovirus. E) Poxvirus.
A
A) Herpes simplex.
15
Q
27) A patient has pus- filled vesicles and scabs on her face, throat, and lower back. She most likely has A) Measles. B) Mumps. C) Chickenpox. D) Rubella. E) Smallpox.
A
C) Chickenpox.
16
Q
31) The patient has vesicles and scabs over her forehead. Microscopic examination of skin scrapings shows gram- positive cocci in clusters. The etiology is A) Candida B) Microsporum C) Pseudomonas aeruginosa D) Staphylococcus aureus E) Sarcoptes
A
D) Staphylococcus aureus
17
Q
35) Assume that your lab partner swabs the side of his face and used the swab to inoculate a nutrient agar plate. The next day, he performs a Gram stain on the colonies. They are gram- positive cocci. You advise him that he should next look for A) An acid- fast reaction. B) A coagulase reaction. C) Conidiospores. D) Pseudohyphae. E) Pseudopods.
A
B) A coagulase reaction
18
Q
Collections of bacteria that adhere to the surfaces of the teeth are called A. dental caries. B. dental plaque. C. halitosis. D. periodontal disease.
A
B. dental plaque
19
Q
The most common infectious disease of humans is A. the common cold. B. dental caries. C. hepatitis A. D. halitosis
A
B. dental caries
20
Q
The principal cause of dental caries is A. S. mutans. B. S. salivarius. C. S. mitis. D. S. sanguis.
A
A. S. mutans.
21
Q
Part of the ability of S. mutans to produce dental caries depends on its ability to A. invade plaque and dissolve the gums. B. convert sucrose to lactic acid. C. convert proteins to sugars. D. attach to the gums.
A
B. convert sucrose to lactic acid.
22
Q
The chronic inflammatory process involving the gums and tissues around the teeth is called A. dental caries. B. periodontal disease. C. dental plaque. D. root caries.
A
B. periodontal disease.
23
Q
Where in the body does the latent, non infectious, non replicating form of the herpes simplex virus persist? A. Motor neurons B. Red blood cells C. Cranial nerves D. Sensory nerves
A
D. Sensory nerves
24
Q
A painful finger infection attributable to herpes virus is known as a(n) A. finger sore. B. abrasion lesion. C. furuncle. D. herpetic whitlow.
A
D. herpetic whitlow.
25
```
The viral disease that characteristically infects the parotid glands is
A. measles.
B. herpes.
C. chickenpox.
D. mumps.
```
D. mumps
26
```
16. Most bacterial intestinal infections may be traced to
A. Vibrio spp.
B. C. jejuni.
C. Salmonella spp.
D. Enterobacteriaceae.
E. All of the choices are correct.
```
E. All of the choices are correct.
27
```
The initial attachment required for establishment of an intestinal infection is by
A. flagella.
B. cilia.
C. pseudopodia.
D. pili.
```
D. pili.
28
```
Cholera is the classic example of a(n)
A. food borne illness.
B. zoonosis.
C. opportunist.
D. very severe form of diarrhea.
```
very severe form of diarrhea.
29
```
The diarrhea of cholera has been described as
A. a viscous fluid.
B. small in volume.
C. somewhat watery.
D. a rice water stool.
```
D. a rice water stool.
30
```
The symptoms of cholera are due to the action of
A. an endotoxin.
B. modified mucus.
C. flagella.
D. an exotoxin.
```
D. an exotoxin.
31
```
The food products most commonly contaminated with Salmonella strains are
A. meat and seafood.
B. milk and cheese.
C. fruit and vegetables.
D. eggs and poultry.
```
D. eggs and poultry
32
```
Viral gastroenteritis in infants and children is most commonly caused by
A. herpes.
B. hepatitis B.
C. Norovirus.
D. rotavirus.
```
D. rotavirus
33
```
Viral gastroenteritis that affects people of all ages and usually lasts less than 3 days is
caused by
A. herpes.
B. hepatitis B.
C. norovirus.
D. rotavirus.
```
C. norovirus.
34
```
The most common chronic blood-borne infection in the U.S. is
A. hepatitis A
B. hepatitis B
C. hepatitis C
D. hepatitis D
```
C. hepatitis C
35
```
Hepatitis A spreads via
A. the respiratory route.
B. blood transfusion.
C. body fluids.
D. the fecal-oral route.
```
D. the fecal-oral route.
36
```
HBV is mainly spread by
A. blood.
B. blood products.
C. semen.
D. saliva.
E. blood, blood products AND semen.
```
E. blood, blood products AND semen.
37
```
The most commonly identified waterborne illness in the United States is
A. amoebiasis.
B. cryptosporidiosis.
C. balantidiasis.
D. giardiasis.
```
D. giardiasis.
38
The bacteria primarily responsible for dental caries is Streptococcus mutans.
true
39
The saliva of asymptomatic carriers of herpes simplex is commonly infectious.
true
40
The mumps virus initially infects the respiratory tract.
true
41
```
The membranes that cover the surface of the brain and spinal cord are known as the
A. neurolemma.
B. dura mater.
C. meninges.
D. collagen.
```
meninges
42
```
To determine the causative agent of a central nervous system (CNS) infection, a sample is
taken from the
A. cerebrospinal fluid.
B. arterial blood.
C. venous blood.
D. urine.
```
A. cerebrospinal fluid.
43
```
The nervous system typically
A. is sterile.
B. has a small number of normal flora.
C. contains Gram-positive bacteria.
D. contains a small number of viruses.
```
A. is sterile.
44
```
An infection of the membranes covering the brain is called
A. encephalitis.
B. meningitis.
C. arachnitis.
D. ventriculitis.
```
B. meningitis.
45
```
The chief source of central nervous system (CNS) infections is through the
A. bloodstream.
B. genitourinary system.
C. skin.
D. nerves.
```
A. bloodstream.
46
```
10. The leading cause of bacterial meningitis in adults is
A. Escherichia coli.
B. Haemophilus influenzae.
C. Streptococcus pneumoniae.
D. Neisseria meningitidis.
```
C. Streptococcus pneumoniae.
47
```
Meningococcal meningitis is typically acquired through the
A. genitourinary tract.
B. respiratory tract.
C. gastrointestinal tract.
D. skin.
```
B. respiratory tract.
| PILI
48
```
Epidemics of meningitis appear to involve
A. Streptococcus pneumoniae.
B. Haemophilus influenzae.
C. Neisseria meningitidis.
D. Streptococcus pyogenes.
```
C. Neisseria meningitidis.
49
Which is true of listeriosis?
A. It is a foodborne disease.
B. It may result in meningitis.
C. It is usually asymptomatic in healthy people.
D. It is caused by an organism that can grow at refrigerator temperatures.
E. All of the choices are correct.
E. All of the choices are correct.
50
```
Intestinal botulism, especially in infants, has been linked to ingestion of
A. seafood.
B. milk.
C. applesauce.
D. honey.
```
D. honey.
