A patient with a throat infection

on Wednesday, January 4, 2012


Question Number 1194
Question:
A patient with a throat infection has a blood agar culture of his throat swab performed. The type of hemolytic reaction displayed on the blood agar is described as being beta-hemolytic. This means :
a) there is complete lysis of red cells surrounding the colony
b) there is partial lysis of red cells surrounding the colony
c) the patient is infected with Group B streptococci
d) there is hemolyis of red blood cells in a helical pattern
e) there is evidence of hemolysis of B-lymphocytes

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