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HEAL 214 > Chapter 42 > Flashcards

Chapter 42 Flashcards

1
Q

If a spill should occur in the lab, which of the the following agents is used for cleanup:

a. 10% phenol	
b. 2% phenol	
c. 3% bleach	
d. 10% bleach
A

d. 10% bleach

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2
Q

Which of the following is NOT included in inoculating techniques?

a. Lawn streak	
b. Loop	
c. Colony count	
d. Random streak
A

d. Random streak

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3
Q

What is the organism that causes strep throat?

a. Group A, alpha-hemolytic streptococcus	
b. Group B, alpha-hemolytic streptococcus	
c. Group A, beta-hemolytic streptococcus	
d. Group B, beta-hemolytic streptococcus
A

c. Group A, beta-hemolytic streptococcus

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4
Q

Which of the following terms best describes infections acquired in hospitals?

a. Bacterial	
b. Serratia	
c. Nosocomial	
d. Floral
A

c. Nosocomial

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5
Q

Which of the following methods is used for maintaining an anaerobic condition?

a. Petri dish	
b. Safety hood	
c. Incubator	
d. Gas pack jar
A

d. Gas pack jar

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6
Q

Which of the following should be used when obtaining a nasopharyngeal collection for a culture?

a. Sterile tongue depressor	
b. Sterile applicator stick	
c. Special swab on a thin wire	
d. None of the above
A

c. Special swab on a thin wire

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7
Q

Which of the following is NOT part of a quality control program in microbiology?

a. Make the SDS available to reference.	
b. Update the laboratory manual daily.	
c. Do not use media past the shelf life.	
d. Monitor all equipment with temperature controls daily.
A

b. Update the laboratory manual daily.

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8
Q

Which of the following best describes the use of a culturette tube?

a. Transporting stool samples	
b. Keeping the swab moist	
c. Transporting blood specimens	
d. All the above
A

b. Keeping the swab moist

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9
Q

Which of the following best describes when a safety hood is mandatory in laboratory use?

a. Performing a culture with a potential of aerosol	
b. Examining a stool specimen	
c. Working with a foul-smelling specimen	
d. Performing an anaerobic culture
A

a. Performing a culture with a potential of aerosol

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10
Q

Which of the following bacteria are purple rods when the staining process is complete?

a. Gram-positive bacilli	
b. Gram-positive cocci	
c. Gram-negative bacilli	
d. Gram-negative spirilla
A

a. Gram-positive bacilli

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11
Q

Which of the following best describes how a bacterium is determined to be Gram positive or negative?

a. Absence of cytoplasm	
b. Presence of ribosomes	
c. Nature of the cytoplasm	
d. Ability to retain or lose color
A

d. Ability to retain or lose color

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12
Q

Media that that contains substances that alter the appearance of some organisms and not others is called:

a. Differential media	
b. Selective media	
c. Basic media	
d. Enriched media
A

a. Differential media

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13
Q

When a parasite test comes back negative for worms, how many confirmatory tests should be performed?

a. 5	
b. 8	
c. 7	
d. several
A

d. several

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14
Q

After the agar plate has been inoculated and properly labeled, what must you do with the plate?

a. Leave it right-side-up, and place in the proper environment for growth.	
b. Turn it upside down, and place in the proper environment for growth.	
c. Place it back with the other agar plates in the original package.	
d. Nothing, agar plates require nothing special.
A

b. Turn it upside down, and place in the proper environment for growth.

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15
Q

When using KOH on a wet mount, what does the KOH do?

a. Clears debris	
b. Stains the organism	
c. Makes objects look brighter	
d. Destroys the fungus
A

a. Clears debris

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16
Q

When a patient has a bacterial infection that is not responding to the antibiotic, what test might the physician order?

a. Differential stain	
b. C & S	
c. KOH	
d. All the above
A

b. C & S

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17
Q

Which of the following best describes placing a sample of body secretions on a special medium to allow bacteria to grow?

a. Holding media	
b. Sensitivity test	
c. Mordant	
d. Culture
A

d. Culture

18
Q

Mycology is the study of

a. Protozoa	
b. Algae	
c. Bacteria	
d. Fungi
A

d. Fungi

19
Q

Which of the following is the nuclear material in all cells?

a. Ribosomes	
b. DNA	
c. Cytoplasm	
d. RNA
A

b. DNA

20
Q

Which of the following is the KOH used for testing?

a. Acid-fast bacteria	
b. Fungi and spores	
c. Stool specimens	
d. Gram positive bacteria
A

b. Fungi and spores

21
Q

Which of the following is NOT an appropriate action when handling microbiology specimens?

a. Handle the specimen as if it is not contaminated.	
b. Look for leaks on the outside of the transporting container.	
c. Use the appropriate container when sending specimens to an outside lab.	
d. Wear gloves.
A

a. Handle the specimen as if it is not contaminated.

22
Q

Which of the following is the type of stain that is often referred to as a specific stain and that allows for microscopic examination of acid-fast organisms?

a. Gram	
b. Acid-fast	
c. Simple	
d. None of the above
A

b. Acid-fast

23
Q

A wet mount is used to:

a. Stain bacteria	
b. Suspend the organism in a liquid to study	
c. Examine organisms under a microscope	
d. Both b and c
A

d. Both b and c

24
Q

Which of the following best describes the use of the colony streaking technique?

a. Grow Shigella	
b. Dilute bacteria	
c. Grow yeast	
d. Plate urine cultures
A

d. Plate urine cultures

25
Q

Trichomonas vaginalis is a parasite that is found how many more times in women than men?

a. 4	
b. 5	
c. 2	
d. 6
A

b. 5

26
Q

Which of the following is true when collecting stool for O & P identification?

a. Do not contaminate the stool specimen with urine.	
b. Use special vials.	
c. Collect the stool in wide-mouth containers.	
d. All the above.
A

d. All the above.

27
Q

Which of the following bacteria are round in shape and can occur in clusters or pairs?

a. Spirilla	
b. Bacilli	
c. Cocci	
d. None of the above
A

c. Cocci

28
Q

Giardiasis Lamblia is often contracted by which of the following?

a. Sanitation workers	
b. Children	
c. Mountain hikers	
d. Athletes
A

c. Mountain hikers

29
Q

Which of the following is true regarding culture media?

a. Agar  contains nutrients in a prepared petri dish	
b. Media can be solid, liquid, or gas.	
c. The agar is considered liquid form.	
d. Semisolid is made by adding more agar.
A

a. Agar contains nutrients in a prepared petri dish

30
Q

Which of the following is used for a stab culture?

a. Incinerator	
b. Inoculating needle	
c. Bunsen burner	
d. Inoculating loop
A

b. Inoculating needle

31
Q

Which of the following is NOT given out as patient education to relieve discomfort and help patients toward better health?

a. Decrease water intake.	
b. Dress comfortably according to the weather.	
c. Cough or sneeze into a tissue.	
d. Avoid tobacco.
A

a. Decrease water intake.

32
Q

Which of the following is the type of media classification that supports the growth of one type of organism while inhibiting the growth of another?

a. Basic	
b. Enriched	
c. Differential	
d. Selective
A

d. Selective

33
Q

Which of the following is an organism requiring special media and an atmosphere of reduced oxygen and increased carbon dioxide?

a. Escherichia coli	
b. Neisseria gonorrhoeae	
c. Staphylococcus	
d. Streptococcus
A

b. Neisseria gonorrhoeae

34
Q

From which of the following is the organism Neisseria meningitidis obtained?

a. Urine	
b. Sputum	
c. Cerebrospinal fluid	
d. Genitalia
A

c. Cerebrospinal fluid

35
Q

How can a fungus infection be diagnosed?

a. Use a Woody lamp.	
b. Use a Wood’s lamp.	
c. Use a Wooden lamp.	
d. Use a Wood’s lantern.
A

b. Use a Wood’s lamp.

36
Q

Which of the following best describes the results of a Gram stain?

a. Gram negative bacteria will turn purple.	
b. Gram positive bacteria will not have any color.	
c. All bacteria will turn yellow.	
d. Gram positive bacteria will turn purple.
A

d. Gram positive bacteria will turn purple.

37
Q

Foodborne illnesses are often caused by which of the following?

a. Raw or uncooked food	
b. Contaiminated food handlers	
c. Both A & B	
d. Fish from polluted waters
A

c. Both A & B

38
Q

Which of the following applies to the collection of specimens?

a. Wear gloves only when needed.	
b. Must strictly adhere to standard precautions.	
c. Occasionally follow instructions in the lab manual.	
d. Lab assistants do not need to wear gloves.
A

b. Must strictly adhere to standard precautions.

39
Q

Which of the following type of specimen is obtained when a lumbar puncture is performed by the physician?

a. Stool	
b. Sputum	
c. Cerebrospinal fluid	
d. Mucous
A

c. Cerebrospinal fluid

40
Q

Which of the following is the next step when there is more than one pathogen growing in a bacterial culture?

a. Use a dissecting microscope.	
b. Set up a subculture and separate bacteria to another media.	
c. Obtain another specimen.	
d. Wait an additional 36 hours to identify the predominant organism.
A

b. Set up a subculture and separate bacteria to another media.

HEAL 214 (8 decks)

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