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Repeated USMLE Questions Step 1- 304

A 32-year-old man with a history of HIV infection presents to the clinic complaining of fecal urgency and bloody diarrhea. The patient was diagnosed with pneumocystis jiroveci pneumonia 6 months ago. Which of these organisms is the most likely involved in this condition? A-Clostridium difficile B-cytomegalovirus C-Entamoeba histolytica D-Giardia lamblia Answer Fecal urgency and bloody … Read more

Repeated USMLE Questions Step 1-302

A 60-year-old man visits the clinic due to profuse watery diarrhea and left lower abdominal colicky pain for the last 6 hours. Upon taking history, the patient claims that he is taking broad spectrum antibiotics for acute bronchitis. Which is the most likely causative organism for the patient’s new symptoms? A- Clostridium botulinum B- Clostridium … Read more