Repeated USMLE Questions Step 1- 4399
A 22-year-old man visits the clinic for evaluation of fever, headache and dry cough for 7 days. His medical history is unremarkable and he takes no medications. He had no previous similar episodes. On examination, temperature is 101.3 F, pulse is 88/min. and blood pressure is 100/60 mmHg. On auscultation, his lungs are clear bilaterally. X-ray shows diffuse infiltration in the lower lobes of both lungs.
What is the most likely causative organism? #usmle #medicine
A - Streptococci
B - Mycobacteria
C - Mycoplasma
D - Fungi
E – Rickettsia
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