Lab technician Prometric exam2022
Question:1
What is the source of infection for the patient in the
above question?
Options:
Question:2
Vaccination against which bacterial species has been most
successful at reducing the number of cases of invasive diseases, including
meningitis?
Options:
Question:3
A 56-year-old renal transplant patient was hospitalized
following an abrupt onset of high fever (39.6 °C), confusion, headache,
diarrhea, a cough productive of scant sputum, and shortness of breath. His
chemistry profile revealed hyponatremia. A chest radiograph showed lobar
infiltrates. Gram stain ofsputum showed numerous neutrophils but failed to show
any organisms. A urine antigen test was positive for the causative agent. What
is the major virulence factor of the causative agent?
Options:
Question:4
Which virulence factor is most important when considering
the pathology of this case?
Options:
Question:5
A patient injured herself at home in the garden, and
after several days, the resulting skin lesion became infected and intensely
painful and she sought medical help. Culture of the wound grew Gram-positive
cocci that were b-hemolytic on blood agar. On nutrient agar, the organism
produced effervescence when hydrogen peroxide was added to the colonies (shown
in the photograph). What is the enzyme responsible for this bubbling?
Options:
Question:6
Of the following organisms, what is the patient most
likely infected with
Options:
Question:7
Based on these initial findings, what is the best
antibiotic choice for the patient in the above case
Options:
Question:8
A pediatric patient with a persistent cough is evaluated
for sinopulmonary disease. History and physical examination determines that the
child suffers from nasal polyps and, possibly, chronic airway obstruction. A
sputum sample produces several bacterial species, including Haemophilus
infiuenzae and a mucoid variety of Pseudomonas aeruginosa. Which of the
following is the most likely diagnosis?
Options:
Question:9
With regard to the above case, which laboratory results
would be most useful in confirming the clini- cal diagnosis?
Options:
Question:10
The preschool in the above case only serves pasteurized
milk and packaged cookies to the children and epidemiologists quickly rule out a
food source as the risk factor. With this in mind, which of the following is
the most plausible means by which the children were infected?
Options:
2. (B) Haemophilusinfiuenzae b
3. (D) Intracellular growth
4. (A) Toxin (lecithinase)
5. (B) Catalase
6. (D) Methicillin-resistant Staphylococcus aureus (MRSA)
7. (E) Trimethoprim–sulfamethoxazole (TMP–SMZ)
8. (C) Cystic fibrosis
9. (D) Type-specific latex agglutination antibody titer
of 1:64
10. (C) Failure to wash hands after visiting a petting zoo
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