Microbiology Quiz #35, Opportunistic Fungal Infections  

1. A 32-year-old male with a history of HIV/AIDS presents with fever, headache, and confusion. MRI of the brain shows multiple ring-enhancing lesions. Which of the following is the most likely diagnosis? 

Question 1 of 5

2. A 58-year-old female undergoing chemotherapy for breast cancer develops a fever and a dry cough. A chest CT scan reveals a halo sign. Which of the following organisms is the most likely cause? 

Question 2 of 5

3. A 25-year-old male with HIV presents with shortness of breath, dry cough, and fever. A chest X-ray shows bilateral interstitial infiltrates. CD4 count is 200 cells/mm³. Which of the following is the most appropriate initial treatment? 

Question 3 of 5

4. A patient presents with meningitis symptoms. CSF analysis shows a high protein concentration, low glucose, and encapsulated yeasts on India ink staining. An image of a similar appearing organism is shown below. Which of the following is the most likely causative agent? 

Question 4 of 5

5. A construction worker in the Southwestern United States presents with fever, cough, and chest pain. Chest X-ray shows a single pulmonary nodule. Which of the following is the most likely diagnosis? 

Question 5 of 5


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