UKMLA PLAB AMC USMLE Prometric MCQ

Question Number 0865

Question:
A 35 year old man has a three day history of a productive cough. His x-ray shows evidence of bilateral consolidation.A sputum culture grows a gram positive organism that is lysed by ethyl hydrocupriene (Optochin) These features are characteristic of

a) Streptococcus pneumoniae
b) Bacteroides fragilis
c) Coxiella burnetii
d) Escherichia coli
e) Haemophilus influenzae