Unit 3 Questions Flashcards by Chelsie Wharton

A 4 year old boy is admitted to the hospital with suspected meningitis. he has not had most of the hildhood vaccines. The suspected pathogen is:

a. listeria monocytogenes
b. Haemophilus influenzae
c. streptococcus agalactiae
d. Neisseria meningitidis

b. Haemophilus influenzae

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Children who have infections with beta-hemolytic streptococci can develop:

A. acute pyelonephritis

B. Diarrhea

C. Glomerulonephritis

D. Renal system carcinoma

C. Glomerulonephritis

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Direct spread of pneumonic plague disease occurs by which route?

Inhalation of contaminated airborne droplets

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Which of the following organisms is the cause of Lyme disease?

A. Treponema pallidum

B. Neisseria meningitidis

C. Babesia microti

D. Borrelia burgdorferi

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Atypical pneumonia is caused by:

A. streptococcus pneumoniae

B. Mycoplasma pneumoniae

C. Klebsiella pneumoniae

D. Mycobacterium tuberculosis

B. Mycoplasma pneumoniae

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Which group of organisms are associated with causing Pontiac Fever?

A. streptococcus species

B. Francisella tularensis

C. Legionella pnuemonphila

D. None of the above

C. Legionella pnuemophila

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Identify the correct statement about Chlamydophila pneumoniae?

A. Found only iin humans

B. Infectious stage involved endospores

C. Obligate intracellular pathogen

D. The vector of this bacteria is a tick

C. Obligate intracellular pathogen

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T/F: The Mycobacterium avium complex (MAC) occurs more frequently in the developing areas of the world and less frequently in the Unites States

False

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The etiologic agent of botulism is:

A. Highly motile

B. Non-spore-forming

C. Clostridium perfringens

D. An exotoxin producer

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A gram stain of a tissue touch prep is coming from a gastric biopsy shows gram-negative bacilli that are slender and curved. The most likely pathogen is:

A. Burkholderia cepacia

B. Corynebacterium urealyticum

C. Helicobacter pylori

D. Neisseria meningitidis

C. Helicobacter pylori

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A reliable test for distinguishing Staphylococcus aureus from other staphylococci is:

A. Oxidase

B. Coagulase

C. Catalase

D. Optochin susceptibility

B. Coagulase

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Which food is not associated with staphylococcal food poisoning?

A. Ice cream

B. Chicken salad

C. Mayonnaise

D. Honey

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Which of the following organisms can grow in the small bowel and cause diarrhea in children, traveler’s diarrhea, or a severe cholera-like syndrome through the production of enterotoxins?

A. Yersinia entercolitica

B. Escherichia coli

C. Salmonella typhi

D. Shigella dysenteriae

B. Escherichia coli

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Which of the following bacteria induce the clinical symptom of diarrhea in their host?

A. Escherichia coli

B. Salmonella species

C. Shigella species

D. all of the above

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Arthropods can transmit which of the following diseases:

A. Bright’s disease

B. Gas gangrene

C. Plague

D. None of the above

C. Plague

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T/F: The family of ticks referred to as the hard ticks is the Argasidae family

False

Soft family = Argasidae

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An antibiotic that inhibis cell wall synthesis is:

A. Chloramphenical

B. Penicillin

C. Sulfamethoxazole

D. Colistin

B. Penicillin

T/F: E test strips are used to directly measure MIC

True

Which test process uses an agar gel and electrophoresis to separate antigens based on their electrical charges?

immunoelectrophoresis

When a disease maintains a relatively steady, low-level frequency at a moderately regular interval it is called ______

A. Sporadic

B. Hyperendemic

C. Endemic

D. Epidemic

C. Endemic

The sudden, unexpected occurrance of a disease in a limited segment of a population is called a(n):

A. outbreak

B. incident

C. epidemic

D. sporadic disease

A. outbreak

Living transmitters (ex. fleas) of an infectious organism from one host to another is called ________

a. vectors
b. reservoirs
c. dead-end hosts
d. none of the above

a. vectors

If your friend told you they were worried about their pellicle, what would you tell them to contact?

A dentist

What drug is often referred to as “the drug of last resort”?

A. Neosporin

B. Penicillin G

C. Vancomycin

D. Erythromycin

C. Vancomycin

The sudden increase in the occurrance of a disease above the expected level is called \_\_\_\_\_\_ ## Footnote A. sporadic B. hyperendemic C. endemic B. epidemic

B. epidemic

Toxic shock syndrome is attributed to infection with: ## Footnote A. staphylococcus epidermidis B. staphylococcus hominis C. staphylococcus aureus D. micrococcus species

C. staphylococcus aureus

The causative agent of whooping cough is \_\_\_\_\_\_ ## Footnote A. Bartonella henselae B. Ehrlichia chaffeensis C. Bordetella pertussis D. Campylobacter jejuni

C. Bordetella pertussis

The Mycobacterium avium complex (MAC) consists of the following organisms ## Footnote A. Neisseria meningitidis + Streptococcus pneumoniae B. Mycobacterium tuberculosis + Mycobacterium bovis C. Mycobacterium avium + Mycobacterium intracellulare C. Mycobacterium avium + Mycobacterium extracellulare

C. Mycobacterium avium + Mycobacterium intracellulare

Which form of streptococcal disease do we worry about in connection with pregnant women? ## Footnote A. streptococcus agalactiae B. streptococcus pyogenes C. streptococcus gordonii D. streptococcus mitis

A. streptococcus agalactiae

Man was hunting rabbits and developed several ulcerative lesions on hands, high fever and swollen axillary lymph nodes. What is the most likely cause of man's current symptoms? ## Footnote A. brucellosis B. Anthrax C. Tularemia D. Q fever

C. Tularemia

Penicillin was discovered by accident, when a _________ was found to kill a bacterium growing on an agar plate

Fungus

Antibiotics can be produced from all of the following Except: ## Footnote A. Fungus B. Streptomyces C. Parasites D. Semi-synthetic processes

C. Parasites

Which of the following is routinely used to detect spirochetes in skin lesions in the early stage of syphilis? ## Footnote a. bright-field microscopy b. electron microscopy c. dark-field microscopy d. mass tandem microscopy

c. dark-field microscopy

A species of bacterium associated with the oil glands of the skin belongs to the genus: ## Footnote a. staphylococcus b. pityrosporum c. propionibacterium

c. propionibacterium

Which of the following would you not find in the nasopharynx? ## Footnote a. streptococcus pneumoniae b. Neisseria meningitidis c. haemophilius influenzae d. Branhamella catarrhalis

d. Branhamella catarrhalis

What are opportunistic pathogens?

When normal microbiota of the human body become pathogenic and produce disease under certain circumstances

A unidirectional process where a specific compound released by one organism has a negative effect on another organism is called: ## Footnote a. predation b. commensalism c. negative cooperation d. amensalism

d. amensalism

Organisms that maintain a sulfide-based mutualism use the _____ cycle to fix CO2 ## Footnote a. Kreb's B. Embden-Meyerhof C. Calvin - Bensen D. Glycolytic Pathway

C. Calvin - Bensen

The destruction or removal of all viable organisms is called:

Sterilization

The substantial reduction of the total population of microorganisms on inanimate object and the destruction of potential pathogens is called?

Disinfection

The time required to kill 90% of the microorganisms or spores in the sample at a specific temperature is the ## Footnote a. thermal death time (TDT) b. Thermal death point (TDP) c. Decimal reduction time (D value) d. Z value

c. Decimal reduction time (D value)