1
2
3
4
5
100

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

  All bacteria will turn yellow.


  Gram negative bacteria will turn purple.


  Gram positive bacteria will turn purple.


  Gram positive bacteria will not have any color.

  Gram positive bacteria will turn purple.

100

 

What is the organism that causes strep throat?

  Group A, alpha-hemolytic streptococcus


  Group B, beta-hemolytic streptococcus


  Group B, alpha-hemolytic streptococcus


  Group A, beta-hemolytic streptococcus

 Group A, beta-hemolytic streptococcus

100

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

 Gram-positive bacilli


  Gram-negative spirilla


  Gram-positive cocci


  Gram-negative bacilli

 Gram-positive bacilli

100

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

  Transporting stool samples


  All the above


  Transporting blood specimens

  Keeping the swab moist

Keeping the swab moist

100

Giardiasis Lamblia is often contracted by which of the following?

  Athletes


 Mountain hikers


  Children


  Sanitation workers


 Mountain hikers

200

The correct specimen and diagnostic test used to identify ova and parasites is

  Stool and culture


  None of the above


  Urine and a culture and sensitivity


  Vaginal and culture

Stool and culture

200

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

  Dress comfortably according to the weather.


  Avoid tobacco.


  Cough or sneeze into a tissue.

  Decrease water intake.

  Decrease water intake.

200

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

 Cocci


  Bacilli


  Spirilla


  None of the above

 Cocci

200

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

  Use the appropriate container when sending specimens to an outside lab.


  Look for leaks on the outside of the transporting container.


Handle the specimen as if it is not contaminated.


  Wear gloves.

Handle the specimen as if it is not contaminated.

200

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

  Sensitivity test
  Mordant
  Holding media
  Culture


 

  Culture
300

Which of the following is NOT included in inoculating techniques?

  Loop


  Colony count

Random streak


  Lawn streak

Random streak

300

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

  Petri dish


  Safety hood


  Incubator


Gas pack jar


Gas pack jar

300

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

  None of the above


  Sterile tongue depressor


Special swab on a thin wire


  Sterile applicator stick

Special swab on a thin wire

300

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

  Do not use media past the shelf life.


  Monitor all equipment with temperature controls daily.


 Update the laboratory manual daily.


  Make the SDS available to reference.

Update the laboratory manual daily.

300

Which of the following is true regarding culture 

  Agar  contains nutrients in a prepared petri dish


  The agar is considered liquid form.


  Media can be solid, liquid, or gas.


  Semisolid is made by adding more agar.

 Agar  contains nutrients in a prepared petri dish

400

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

  DNA


  Cytoplasm


  Ribosomes


  RNA

  DNA

400

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

  Nature of the cytoplasm

 Ability to retain or lose color


  Presence of ribosomes


  Absence of cytoplasm

 Ability to retain or lose color

400

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

  Selective media


  Enriched media


  Basic media


  Differential media

  Differential media

400

How can a fungus infection be diagnosed?

  Use a Wood’s lantern.


  Use a Woody lamp.


  Use a Wooden lamp.


  Use a Wood’s lamp.

  Use a Wood’s lamp.

400

Which of the following is used for a stab culture?

  Bunsen burner


  Inoculating loop

 Inoculating needle


  Incinerator

 Inoculating needle

500

Which of the following applies to the collection of specimens?

  Lab assistants do not need to wear gloves.


  Wear gloves only when needed.


  Must strictly adhere to standard precautions.


  Occasionally follow instructions in the lab manual.

  Must strictly adhere to standard precautions.

500

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

  10% phenol


  2% phenol


  10% bleach


  3% bleach

  10% bleach

500

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

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


  Place it back with the other agar plates in the original package.


  Nothing, agar plates require nothing special.


  Leave it right-side-up, and place in the proper environment for growth.

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

500

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

 Set up a subculture and separate bacteria to another media.


  Obtain another specimen.


  Use a dissecting microscope.


  Wait an additional 36 hours to identify the predominant organism.

Set up a subculture and separate bacteria to another media.

500

A wet mount is used to:

  Stain bacteria


  Examine organisms under a microscope


  Both b and c


  Suspend the organism in a liquid to study

Both b and c