Microbiology Quizzes
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OtoPrep Micriobiology Questions
OtoPrep Micriobiology Questions

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10 Microbiology Questions

10 Microbiology Questions - Random Allocation

1 / 10

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A 35-year-old male patient presents to the otolaryngology clinic, recounting a previous episode of meningitis. He complains of persistent hearing loss and tinnitus in his right ear since the meningitis episode. Otoscopic examination is unremarkable. A CT scan of the temporal bone reveals a bony growth in the labyrinthine structures, consistent with labyrinthitis ossificans. Which of the following microorganisms is most commonly associated with meningitis that leads to labyrinthitis ossificans?

2 / 10

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A 10-year-old male presents to the otolaryngology clinic with a 4-day history of hoarseness, cough, and associated throat pain. His mother reports a low-grade fever 2 days prior but denies any history of recent trauma, foreign body ingestion, or allergies. On examination, the patient has diffuse erythema and swelling of the vocal cords. Given the presentation suggestive of acute viral laryngitis, which of the following pharmacotherapies is most appropriate to improve the patient's pain?

3 / 10

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A 25-year-old male presents to the otolaryngology clinic with a sore throat for the past week. The patient also reports associated high fever, profound malaise, and fatigue. He denies any cough or rhinorrhea. On physical examination, there is marked pharyngeal erythema, bilaterally enlarged tonsils with exudates, and tender cervical lymphadenopathy. His spleen is palpably enlarged on abdominal examination. The most appropriate next step in diagnosis is to obtain a heterophile antibody test. What is the most likely diagnosis in this patient?

4 / 10

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A 28-year-old female is referred to the otolaryngology clinic with a one-week history of worsening headache, fever, and history of recurrent otitis media. Investigations reveal the presence of a fungal ear infection. She is started on amphotericin B. Which of the following is NOT a recognized side effect of amphotericin B?

5 / 10

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A 43-year-old male attends the otolaryngology clinic with a complaint of progressive dysphagia, intense odynophagia, and persistently dry mouth for the past three weeks. He denies any associated fever or weight loss. On physical examination, you observe creamy white plaques on the tongue, buccal mucosa, and oropharynx, which can be scraped off, leaving behind an erythematous base. A swab from these plaques shows hyphal forms confirming oral candidiasis. Which of the following is the preferred initial management for moderate to severe oral candidiasis?

6 / 10

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A 38-year-old male presents to the otolaryngology clinic with a 3-month history of persistent headaches, unilateral tinnitus in his left ear, and progressive hearing loss on the same side. Given the combination of symptoms and a revealed high-risk sexual history, there is suspicion of neurosyphilis. Which of the following tests would be most appropriate to diagnose neurosyphilis in this patient?

7 / 10

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A 55-year-old man presents to the otolaryngology clinic with a two-week history of fever, malaise, and tender, swollen lymph nodes on the left side of his neck. He mentions a recent history of contact with a domestic cat.

Which of the following statements is most accurate regarding the diagnosis of cat-scratch disease?

8 / 10

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A 25-year-old male visits the ENT clinic with a 3-week history of a painless, indurated ulcer with a clean base located on the lateral aspect of his tongue. He also recalls having flu-like symptoms a few weeks ago. You suspect a primary syphilitic lesion. Which of the following organisms is the causative agent of syphilis?

9 / 10

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A 32-year-old male presents to the otolaryngology clinic with a 3-month history of a painful, red, swollen left neck mass. He reports that the mass has been slowly increasing in size and has been associated with fever, chills, and night sweats. Based on the clinical presentation and suspected mycobacterial infections of the head and neck, which of the following tests would be the most definitive for diagnosis?

10 / 10

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A 36-year-old female presents to your otolaryngology clinic with a sore throat and fever that has been persistent for several days. She mentions that she recently had intimate contact with a partner who complained of cold sores. On examination, vesicular lesions are observed on her oropharyngeal mucosa. You suspect primary herpetic gingivostomatitis. Given this diagnosis, you consider prescribing antiviral therapy. What is the mechanism of action of acyclovir, a commonly used antiviral agent for this condition?

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