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Duplicate of MLT 107 Unit 5 Review Flashcards | StudBud
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Duplicate of MLT 107 Unit 5 Review
Duplicate of MLT 107 Unit 5 Review
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Answers
1
Pasturella multocida is the most commonly isolated pasturella species?
True
False
2
What are the recovery sites for Neisseria meningitides?
Urogenital and rectal
Oral genital
Oral genital, urogenital and rectal
None of these
3
What Neisseria spp. Spreads quickly in crowded living conditions?
Neisseria moraxella
Neisseria meningitides
Neisseria catalharis
Neisseria lactamica
4
Disseminated gonococcal disease causes all of the following conditions except?
Intermittent bacteremia with fever
Rash on the extremities
Purulent arthritis
Runny Nose
5
A petri dish with nails was submitted to the laboratory for a patient John Doe for a Haemophilus work up. What's next?
Reject the sample (Wrong site); request a blood joint or middle ear exudate
Call the CDC
Inoculate the nails by embedding them into SBA plates
Post it on social media
6
Describe a positive reaction for a woods lamp technique for the porphyrins test?
Fluoresce green under UV light
Fluoresce reddish-orange under UV light
Fluoresce white under UV light
Fluoresce purple under UV light
7
What are the methods utilized when conducting the porphyrin test?
Disk
Slide agglutination
Broth
Agar , Broth or Disk
8
Which of the following describes members of the HACEK group?
Haemophilus spp. A. actinomycetemcomitans, C. hominis E. influenzae
Haemophilus spp. A. actinomycetemcomitans, C. ducreyi E. corrodens Kingella
Haemophilus spp. A. Influenzae, C. hominis E. corrodens Kingella spp
Haemophilus spp. A. actinomycetemcomitans, C. hominis E. corrodens Kingella
9
What haemophilus strain can cause contagious conjunctivitis and is also known as Koch-Weeks bacillus?
Heamophilus influenza biogroup aegyptius
Heamophilus aphrophilus
Heamophilus parainfluenzae
Heamophilus ducreyi
10
Moraxella catarrhalis is a commensal it can cause upper respiratory infections in health children and the elderly.
False
True
11
Which of the following bacterial species can infect a human after a dog or cat bite?
Francisella tularensis
Campylobacter spp.
Pasteurella spp.
None of these
12
What are the acceptable specimen for a Legionella spp. culture?
Genital exudate, vaginal swab,
Wound swab
Blood and Pleural fluid
Sputum, Broncho alveolar lavage, bronchial washing
13
Microbiological cultures are optional when ruling out Legionella pneumophilia.
True
False
14
The ONPG test is used to differentiate what organism?
Staphylococcus from Streptococcus spp.
Neisseria meningitides and Neisseria lactamica
Neisseria meningitides and Moraxella catalharis
Moraxella spp from Neisseria
15
How do newborns acquire Opthalmia neonatorum?
Inhaling droplets from other infected neonates.
During birth, passing through the birth canal infected with N. gonorrhoeae
Ingestion on uncooked meat
Nursing from an infected parent
16
Which organism is described as an opportunistic pathogen for the upper respiratory tract for children and the elderly?
Neisseria lactamica
Neisseria catalharis
Neisseria meningitides
Moraxella catarrhalis
17
What species has yellow granular convex colonies on chocolate agar and is the most prevalent species of the HACEK group?
Aggregatibacter aphrophilus
Kingella spp.
Haemophilus spp.
Aggregatibacter actinomycetemcomitans
18
What is the microscopic morphology of Legionella pneumophilia?
Pleomorphic, thin, weakly staining, gram-positive rods
Pleomorphic, thin, weakly staining, gram-negative rods
Pleomorphic, thin, weakly staining, gram-variable rods
Pleomorphic, thin, weakly staining, gram-negative cocci
19
Gram negative diplococci that are both intracellular and extracellular describe what specie of Neisseria?
Moraxella catarrhalis
Neisseria lactamica
Neisseria catalharis
Neisseria meningitides
20
Francisella tularensis is responsible for causing what disease?
Cat fever
Parrot fever
Rabbit Fever
Dog fever
21
What are the symptoms experienced by a patient with a Haemophilus ducreyi chancroid infection?
Migraine headaches tachycardia and swollen lymph nodes
Fever loss of appetite and thirst
None of these
Painful lesions of the penis labia or vagina
22
Of the following, which is an acceptable transport media for Neisseria gonorrhoeae?
Saline solution
Cotton Swab
Cary Blair transport media
Amies medium with charcoal
23
All of the following are roles of the Haemophilus influenza capsule; EXCEPT:
Perpetuates systemic infections
Plays an important role in the invasiveness of the bacteria into tissues
Antiphagocytic and anticomplement roles
Digestion of extracellular nutrients
24
Aggregatibacter actinomycetemcomitans is catalase positive and oxidase _______.
Variable
Negative
Positive
Neutral
25
What methods would a microbiologist use to identify Legionella spp?
DNA detection
Direct fluorescent antibody (DFA) test
All of these
Indirect immunofluorescence
26
The virulence factors for Neisseria spp. include all of the following; EXCEPT?
Immunoglobin A protease
Capsule formation
Exotoxin
Fimbriae or pili formation
27
Colony morphology microscopic identification and the oxidase test can be used to presumptively identify N. meningitides.
True
False
28
Chocolate agar is a essential in the recovery of fastidious organisms and presumptive identification all; EXCEPT:
Aggregatibacter aphrophilus
Cardiobacterium hominis
Heamophilus Influenzae
Streptococcus pneumonieae
29
Describe the macroscopic description of Haemophilus influenzae?
Grey colonies with a medusas head appearance
Translucent moist smooth convex colonies
Swarming purple colonies with a grape like smell
Large white mucoid colonies
30
What haemophilus strain is rarely associated with endocarditis?
Heamophilus influenza biogroup aegyptius
Heamophilus parainfluenzae
Heamophilus aphrophilus
Heamophilus ducreyi
31
What are the specimen collection sites for the recovery of Moraxella catarrhalis?
All of these
Nasopharynx
Middle ear effusion
Sinus, sputum or bronchial aspirates
32
Which of the following describe Haemophilus spp.?
Gram positive streptococcus pairs and chains, catalase negative and motile
Oxidase positive non-motile gram negative coccobacilli
Catalase positive gram positive bacilli
Pink colonies on MacConkey plate
33
Nicotinamide-adenine dinucleotide (NAD) is essential for?
Aerobic Haemophilus spp., Work up with heme and no nutrients
Haemophilus spp.
Anaerobic Haemophilus spp., Work up without heme
All of these
34
Untreated cervicitis can lead to what condition in women?
Night sweats
Pelvic inflammatory disease
Pharyngitis
Fever
35
Commensal flora spread by respiratory droplets found in mucosal surfaces; recovered from oral-genital and rectal site.
Neisseria moraxella
Neisseria lactamica
Neisseria catalharis
Neisseria meningitides
36
What tests are instrumental for the diagnostic determination of meningitis?
CSF and Blood Culture
BMP and CBC
PHA part I and II
Wound and throat culture
37
What is unique in regards to the incubation of a Moraxella catarrhalis culture?
None of these
Can be incubated at room temperature
Can tolerate lower temperatures and grows well at 28 C
Can tolerate high temperatures and grows well at 42 C
38
Which of the following antibiotics would NOT be prescribed to treat a Moraxella catarrhalis infection?
Amoxicillin-clavulanic acid
Tylenol Motrin and Water
Trimethoprim-sulfamethoxazole
Extended spectrum cephalosporins
39
The colony morphology of Moraxella catarrhalis is ________.
May be described as a “hockey puck”
All of these
Older colonies give a “wagon-wheel” appearance
Smooth opaque gray to white colonies
40
What medications are available for treatment of haemophilus infections?
Azithromycin
All of these
Trimethoprim and sulfamethoxazole
Ceftriaxone / cefotaxime
41
Azithromycin and fluoroquinolone can be used to treat?
High blood pressure medication
Early legionella pneumophilia infections
Dietary disease
Diabetic treatment
42
Why is serological testing for Bordetella pertussis not widely used?
Testing is not standardized
Expensive and not widely available
None of these
All of these
43
The oxidase/catalase reaction for Neisseria spp. is ________?
Oxidase and catalase variable
Oxidase and catalase negative
Oxidase and catalase positive
None of these
44
Mousy or bleach like odor is associated with which Haemophilus species?
Haemophilus parainfluenzae
Haemophilus influenzae
Haemophilus aphrophilus
Haemophilus ducreyi
45
Which of the Major outer membrane proteins (MOMP) are important for antigenic variation of Neisseria spp?
Protein III and LOS
All of these
Protein
Protein II
46
Normal flora of the upper respiratory tract include all the following; EXCEPT.
Moraxella catarrhalis
Neisseria meningitidis
Streptococcus pneumonia
Neisseria gonorrhoeae
47
What is the significance of suppressing normal flora growth on a MTM plate?
Increase selectivity of the MTM plate; increase recovery of N. gonorrhoeae
There is no need to add antifungals to the MTM plate
To increase the market price of the plate
There is no need to add antibiotics to an MTM plate
48
A febrile disease with pneumonia caused by Legionella pneumophilia is termed as ______.
Pontiac fever
Legionnaires’ disease
Scalded skin syndrome
Malta fever
49
What is the preferred selective media for the recovery of Bordetella pertussis?
None of these
Bordet-Gengou (Potato infusion) agar
Chocolate agar
MacConkey agar
50
The male symptoms of a Neisseria gonorrhoeae infection are ________?
None of these
Dysuria and purulent urethral discharge
Urethral stricture and prostatitis
Dysuria, purulent urethral discharge, urethral stricture and prostatitis
51
All of the following are symptoms of Meningococcal meningitis; EXCEPT:
Stiff neck
Polycythemia vera
Frontal headache
Fever
52
What type of swab would you use to rule out Neisseria gonorrhoeae?
Dacron or Rayon swab
Sterile swab
Calcium alginate swab
Cotton Swab
53
A febrile disease without pneumonia (pulmonary involvement ) caused by Legionella pneumophilia is termed as ______.
Malta fever
Pontiac fever
Mustang fever
Legionnaires’ disease
54
What is the oxidase/catalase reaction for Moraxella catarrhalis?
Oxidase and Catalase negative
Oxidase and catalase variable
Oxidase and catalase positive
None of these
55
Bordetella pertussis can be ruled out via culture or PCR of a nasopharyngeal swab?
True
False
56
Legionella pneumophila causes ______ because it produces symptoms that are different from a _______ infection.
URT’s; Haemophilus
Community-acquired pneumonia; Streptococcus
AIDS; Staphylococcus
UTI’s; Escherichia coli
57
Describe the macroscopic appearance of Neisseria gonorrhea on MTM.
Gram positive bacilli
Mucoid colonies with a cream color
Raised Small gray to tan translucent colonies
Blue-green colonies
58
Neisseria gonorrhoeae colonies are incubated at 350C and 5% CO2?
False
True
59
What nutrients are required for the growth of Haemophilus spp.?
A B C
Do re mi
X & V
1 2 3
60
Which of the following organisms belongs to the family Moraxellaceae and is isolated only in humans?
Moraxella catarrhalis
Neisseria gonorrhoeae
Neisseria sicca
None of these
61
Bordetella pertussis and Bordetella parapertussis are responsible for causing ________?
Strep throat
Whooping cough
Urinary tract infections
All of these
62
What is the storage temperature when culture of a specimen to rule out Legionella spp. is delayed for more than 2 hours?
Room Temperature
Refrigerate the specimen and freeze at -70 if delayed for several days
Incubate the sample in 35 degrees non - CO2 incubator
Incinerate the sample and request a new specimen
63
What special ingredients are found in the Haemophilus quad plate?
Factor X Factor V, Factor X and V heme and NAD
Factor X and V
Seasonal salts
Factor X only
64
Haemophilus spp. can convert nitrate into nitrite; Aerobic to facultative bacteria.
True
False
65
What are the incubation requirements for Haemophilus influenzae?
30°C - 70°C, 5% to 10%
3°C - 7°C, 15% to 20%
23°C - 27°C, 50% to 100%
33°C - 37°C, 5% to 10%
66
Describe the microscopic morphology of Neisseria gonorrhoeae.
Gram negative bacilli
Gram positive bacilli
Gram positive cocci in chains
gram-negative intracellular diplococci
67
What Neisseria spp. spreads quickly via sexual contact?
Moraxella catarrhalis
Neisseria catalharis
Neisseria lactamica
Neisseria gonorrhoeae
