BIOD 171 MODULE 5 REVIEW 100%
ACCURATE
, Define the concept of universal precautions. - ANSWERUniversal precautions means
any and all samples, whether known or unknown, are to be treated as potentially
hazardous (or pathogenic) materials.
What would a researcher be certain to note while analyzing a microbial sample? -
ANSWERA lab researcher would be certain to note1. Size and shape2. Any observable
motility3. Gram status (positive or negative)4. The presence of any chemical reactions5.
Changes in color localized to the organism or the surrounding media6. Capture (or
draw) images of any of the characteristics described above
Which non-selective yet differential agar plate should be used if a Streptococcus sample
is suspected? - ANSWERA BAP (blood agar plate) would be the quickest way to identify
and classify a potential streptococcus microbe based on its hemolytic properties.
What disease can result if a patient with streptococcal pharyngitis goes untreated? -
ANSWERRheumatic fever occurs in approximately 3% of untreated cases of
streptococcal pharyngitis, presenting approximately 2-3 weeks post-infection.
Streptococcus, E. coli, pseudomonas, and klebsiella are all capable of causing what
disease? - ANSWERAll of the above foreign microbes are capable of causing
septicemia, also known as blood poisoning.
What is a facultative anaerobe? - ANSWERA facultative anaerobe is capable of growth
under both aerobic (with oxygen) and anaerobic (in the absence of oxygen) condition.
A bacterial swab is taken from a patient with impetigo and streaked across an MSA
plate. Following incubation at 37C, what will be the color of the agar? - ANSWERThe
causative agent of impetigo is staph aureus, a Gram-positive bacterium capable of
fermenting mannitol. Fermentation will lower the pH of the agar and change the dye
color from red to yellow.
If a patient were suspected to have tuberculosis (TB), which differential stain would you
select and why? - ANSWERTo stain for TB, one would utilize an acid-fast stain to best
visual the foreign microbe. As a mycobacterium tuberculosis would stain poorly
(indeterminate) using the Gram stain.
According to the module, which mycobacterium infection will be treated free of charge
by the World Health Organization (WHO)? - ANSWERLeprosy is completely curable
using a multiple-drug therapy regimen consisting of various combinations of the drugs
dapsone, rifampin and clofazimine—all of which is given free of charge.
ACCURATE
, Define the concept of universal precautions. - ANSWERUniversal precautions means
any and all samples, whether known or unknown, are to be treated as potentially
hazardous (or pathogenic) materials.
What would a researcher be certain to note while analyzing a microbial sample? -
ANSWERA lab researcher would be certain to note1. Size and shape2. Any observable
motility3. Gram status (positive or negative)4. The presence of any chemical reactions5.
Changes in color localized to the organism or the surrounding media6. Capture (or
draw) images of any of the characteristics described above
Which non-selective yet differential agar plate should be used if a Streptococcus sample
is suspected? - ANSWERA BAP (blood agar plate) would be the quickest way to identify
and classify a potential streptococcus microbe based on its hemolytic properties.
What disease can result if a patient with streptococcal pharyngitis goes untreated? -
ANSWERRheumatic fever occurs in approximately 3% of untreated cases of
streptococcal pharyngitis, presenting approximately 2-3 weeks post-infection.
Streptococcus, E. coli, pseudomonas, and klebsiella are all capable of causing what
disease? - ANSWERAll of the above foreign microbes are capable of causing
septicemia, also known as blood poisoning.
What is a facultative anaerobe? - ANSWERA facultative anaerobe is capable of growth
under both aerobic (with oxygen) and anaerobic (in the absence of oxygen) condition.
A bacterial swab is taken from a patient with impetigo and streaked across an MSA
plate. Following incubation at 37C, what will be the color of the agar? - ANSWERThe
causative agent of impetigo is staph aureus, a Gram-positive bacterium capable of
fermenting mannitol. Fermentation will lower the pH of the agar and change the dye
color from red to yellow.
If a patient were suspected to have tuberculosis (TB), which differential stain would you
select and why? - ANSWERTo stain for TB, one would utilize an acid-fast stain to best
visual the foreign microbe. As a mycobacterium tuberculosis would stain poorly
(indeterminate) using the Gram stain.
According to the module, which mycobacterium infection will be treated free of charge
by the World Health Organization (WHO)? - ANSWERLeprosy is completely curable
using a multiple-drug therapy regimen consisting of various combinations of the drugs
dapsone, rifampin and clofazimine—all of which is given free of charge.
