Q:58-Optochin is used to help identify
Anonymous Quiz
27%
Streptococcus pneumoniae
19%
Staphylococcus aureus
32%
Streptococcus pyogenes (group A)
22%
Strepococci producing alpha hemolysis
Q:59-A trophozoite of Entamoeba histolytica usually contains
Anonymous Quiz
27%
Bacteria and coarse granules in the cytoplasm
29%
Eccentrically located endosome in the nucleus
23%
A coarse, granular, blunt pseudopod
21%
Red blood cells int he cytoplasm
Q:60-Which media is used to ISOLATE Staphylococcus aureus from specimens that have mixed bacterial flora such as feces?
Anonymous Quiz
25%
Mannitol salt agar
18%
An enrichment broth
34%
MacConkey agar
23%
Eosin methylene blue agar (EMB)
Q:61-A fladellate frequently found in the urine of female patients is
Anonymous Quiz
11%
Trichomonas hominis
15%
Entamoeba coli
13%
Trichomonas tenax
61%
Trichomonas vaginalis
Q:62-Which organisms are described as minute, very plemorphic, sometimes coccobacillary, gram-negative rods that must have media enriched with X and V factors?
Anonymous Quiz
26%
Escherichia coli
16%
Listeria monocytogenes
43%
Haemophilus influenzae
14%
Bacillus anthracis
Q:63-Bordet-Gengou and Eugon agar base with fresh blood is used for the isolation of
Anonymous Quiz
39%
Haemophilus
35%
Bordetella
15%
Pasteurello
11%
Yersinia
Q:64-According to the Lancefield scheme of classifying the Streptococcus species, the neterococci are placed in group
Anonymous Quiz
29%
A
36%
B
22%
C
13%
D
Q:65-Strepococcus pneumoniae
Anonymous Quiz
38%
Is consistently gram-positive even in old cultures
18%
Grows best at slightly acid pH
17%
Is motile
26%
Capsules are produced by virulent strians
Q:66-Which one fo the following test differentiates Staphylococcus aureus from other types of staphlococci?
Anonymous Quiz
19%
Oxidase
38%
Coagulase
36%
Catalase
7%
Fibrinolysin
👎2
Q:67-The etiologic agent of chancroid is
Anonymous Quiz
20%
Haemophilus aegyptius
32%
Haemophilus ducreyi
34%
Haemophilus influenzae
14%
Bordetella pertussis
Q.68 : Receiving cannot accept a specimen unless it has:
Anonymous Quiz
13%
A correct, legible label
18%
An uncontaminated, signed requisition with billing information
13%
An intact container with correct media
56%
All of the above
👍1
Q:69-Safranin in a Gran stain is used as a
Anonymous Quiz
18%
Mordant
20%
Decolorizer
50%
Secondary stain
12%
Primary stain
Q:70-The organism that can cause rheumatic fever and/or glomerular nephritis is
Anonymous Quiz
27%
Staphylococcus aureus
37%
Streptococcus pyogenes
16%
Streptococcus viridans
20%
Staphylococcus haemolyticus
Q:71-A variety of media may be safely stored for months is care is taken to
Anonymous Quiz
26%
Maintain them at room temperature
22%
Retain their moisture
21%
Avoid exposing them to light
31%
Maintain them in an incubator
Q:72-In the 1980s, Ewing, Bergey, and the Centers for Disease Control and Prevention (CDC) divided the Enterobacteriaceae into several different tribes. Which one of the following is NOT a valid tribe under their classification scheme?
Anonymous Quiz
22%
Escherichieae Escherichia-Shigella
27%
Citrobactereae Citobacter
35%
Salmonelleae & Shigellaeae Salmonella-Shigella
16%
Edwardsielleae Edwardsiella
Q:73-In Taenia saginata, the larval stage develops in
Anonymous Quiz
38%
Cattle
21%
Swine
22%
Fish
20%
Man
Q:74-A floatation method for concentration of ova and cysts used
Anonymous Quiz
25%
Ammonium sulfate
19%
Zinc chloride
32%
Zinc sulfate
25%
Concentrated formalin
Q:75-The infective stage of the hookworm is the
Anonymous Quiz
21%
Rhabditiform larva with a short buccal cavity
35%
Rhabditiform larva with a long buccal cavity
35%
Filariform larva with a pointed tail
9%
Filariform larva with a notched tail
Q:76-Enterobius vermilcularis is a
Anonymous Quiz
31%
Hookworm
44%
Pinworm
18%
Filarial worm
7%
Flat worm