MLT-240 Clinical Microbiology Final Exam With
Complete Solutions (Latest 2024/2025) Guide| Test
Bank
In order to work with cultures of Mycobacterium tuberculosis, the laboratory must
be categorized as - ANSWERBSL 3
A biological safety cabinet functions by - ANSWERacting as a primary barrier
between the specimen and the microbiologist.
maintaining negative pressure to prevent distribution of aerosols.
providing protection from external contamination.
Answer: All of the above
Which of following specimens is an error in the pre-analytical phase of laboratory
testing? - ANSWERUrine collected in a plastic food container
The presence of squamous epithelial cells in sputum indicates - ANSWERsaliva not
sputum.
Sheep blood agar is classified as - ANSWERenriched general purpose.
A microaerophilic atmosphere is composed of - ANSWER5% oxygen, 10% carbon
dioxide, and 85% nitrogen
An organism that grows on media incubated in carbon dioxide but not in ambient air
or anaerobically is considered - ANSWERcapnophilic.
A bacterial culture of a urine specimen requires a _________ for inoculation of the
agar plates. - ANSWERcalibrated loop
Given the following specimen types/body sites, which one should you process first? -
ANSWERCerebrospinal fluid
Partially lysed red blood cells under and around a colony on sheep blood agar appear
as - ANSWERa green discoloration known as alfa hemolysis
You have been exposed to Franciscella tularensis due to a faulty laminar flow hood.
Your supervisor knew the hood was not functioning properly but told you to
continue using it because it was better than nothing. To report this violation, you
should notify - ANSWEROSHA
Alcohol is not used to clean the work surfaces in a microbiology department because
it - ANSWERdoes not kill bacterial spores.
Using a 10% suspension of bleach to clean a work bench is considered -
ANSWERdisinfection.
, A substance or microorganism that can cause infection, allergy, or toxicity is known
as - ANSWERa biohazard
You have finished a run of samples for detection of Neisseria gonorrhoeae by nucleic
acid amplification. The kit controls did not work. This is an example of a/an
______________ error(s) in the laboratory testing process. - ANSWERanalytical
Which of the following describe the process of performance improvement? -
ANSWERIt is measured by patient outcomes
Which of the following terms refers to checking media and reagents with specific
organisms to see whether expected results are obtained? - ANSWERQuality control
Which of the following items are reasons to reject a specimen for culture? -
ANSWERSpecimen preserved in formalin
Specimen dried up
Syringe with needle attached
A missed labeled specimen
Answer: All of the above
Which of the following approaches to taxonomy is based on the physical
characteristics - ANSWERPhenotypic
Which of the following defines a bacterial species? A group of microorganisms that -
ANSWERshare a considerable set of phenotypic characteristics
Which of the following stem endings indicates a bacterial family? - ANSWER-aceae
Fungi differ from other microorganisms because they contain - ANSWERa cell wall of
chitin.
Eukaryotic cells differ from prokaryotic cells because eukaryotic cells have -
ANSWERa nuclear membrane.
A microorganism is named Staphylococcus aureus. The second word (aureus) is the -
ANSWERspecies.
A microorganism is named Staphylococcus aureus. The first word (Staphylococcus) is
the - ANSWERgenus.
Which words in the two-word name for a microorganism should be capitalized and
underlined or italicized? - ANSWERGenus is capitalized and both are underlined or
italicized.
Heterotrophic organisms derive their energy from oxidation of - ANSWERorganic
molecules.
Complete Solutions (Latest 2024/2025) Guide| Test
Bank
In order to work with cultures of Mycobacterium tuberculosis, the laboratory must
be categorized as - ANSWERBSL 3
A biological safety cabinet functions by - ANSWERacting as a primary barrier
between the specimen and the microbiologist.
maintaining negative pressure to prevent distribution of aerosols.
providing protection from external contamination.
Answer: All of the above
Which of following specimens is an error in the pre-analytical phase of laboratory
testing? - ANSWERUrine collected in a plastic food container
The presence of squamous epithelial cells in sputum indicates - ANSWERsaliva not
sputum.
Sheep blood agar is classified as - ANSWERenriched general purpose.
A microaerophilic atmosphere is composed of - ANSWER5% oxygen, 10% carbon
dioxide, and 85% nitrogen
An organism that grows on media incubated in carbon dioxide but not in ambient air
or anaerobically is considered - ANSWERcapnophilic.
A bacterial culture of a urine specimen requires a _________ for inoculation of the
agar plates. - ANSWERcalibrated loop
Given the following specimen types/body sites, which one should you process first? -
ANSWERCerebrospinal fluid
Partially lysed red blood cells under and around a colony on sheep blood agar appear
as - ANSWERa green discoloration known as alfa hemolysis
You have been exposed to Franciscella tularensis due to a faulty laminar flow hood.
Your supervisor knew the hood was not functioning properly but told you to
continue using it because it was better than nothing. To report this violation, you
should notify - ANSWEROSHA
Alcohol is not used to clean the work surfaces in a microbiology department because
it - ANSWERdoes not kill bacterial spores.
Using a 10% suspension of bleach to clean a work bench is considered -
ANSWERdisinfection.
, A substance or microorganism that can cause infection, allergy, or toxicity is known
as - ANSWERa biohazard
You have finished a run of samples for detection of Neisseria gonorrhoeae by nucleic
acid amplification. The kit controls did not work. This is an example of a/an
______________ error(s) in the laboratory testing process. - ANSWERanalytical
Which of the following describe the process of performance improvement? -
ANSWERIt is measured by patient outcomes
Which of the following terms refers to checking media and reagents with specific
organisms to see whether expected results are obtained? - ANSWERQuality control
Which of the following items are reasons to reject a specimen for culture? -
ANSWERSpecimen preserved in formalin
Specimen dried up
Syringe with needle attached
A missed labeled specimen
Answer: All of the above
Which of the following approaches to taxonomy is based on the physical
characteristics - ANSWERPhenotypic
Which of the following defines a bacterial species? A group of microorganisms that -
ANSWERshare a considerable set of phenotypic characteristics
Which of the following stem endings indicates a bacterial family? - ANSWER-aceae
Fungi differ from other microorganisms because they contain - ANSWERa cell wall of
chitin.
Eukaryotic cells differ from prokaryotic cells because eukaryotic cells have -
ANSWERa nuclear membrane.
A microorganism is named Staphylococcus aureus. The second word (aureus) is the -
ANSWERspecies.
A microorganism is named Staphylococcus aureus. The first word (Staphylococcus) is
the - ANSWERgenus.
Which words in the two-word name for a microorganism should be capitalized and
underlined or italicized? - ANSWERGenus is capitalized and both are underlined or
italicized.
Heterotrophic organisms derive their energy from oxidation of - ANSWERorganic
molecules.
