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Blood Agar
(Single Best Answer) Question 1: A 50 year old chronic alcoholic male agricultural worker presented with high grade fever of one week duration with spells of chills and rigor. Examination of the respiratory system revealed bilateral crepitations with scattered rhonchi. Multiple subcutaneous nodules were found on the extensor surface of the left forearm, arm and left leg. Direct microscopy of the pus aspirated from the skin nodule revealed plenty of Gram negative bacilli with bipolar staining. Culture revealed distinct rough corrugated grey-white colonies on Blood Agar. The organisms were motile and oxidase positive. The most likely diagnosis is ?
A) Plague
B) Melioidosis
C) Bartonellosis
D) Actinomycosis
Answer (Select an option above to get the answer):
(Single Best Answer) Question 2: A 3 week old child presented to the pediatrician with meningitis. A presumptive diagnosis of late onset of a perinatal infection was made. The CSF culture was positive for gram positive bacilli. Which of the following characteristic of this bacteria would be helpful in differentiating it from other bacteria agents ?
A) Ability to grow on Blood agar
B) Ability to produce catalase
C) Fermentative attack on sugars
D) Molitity at 25°C
Answer (Select an option above to get the answer):
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