Author Question: A throat culture provides the following results: Moderate growth of alpha-hemolytic, ... (Read 68 times)

appyboo · **on:** Jun 25, 2018

A throat culture provides the following results:
Moderate growth of alpha-hemolytic, catalase-negative, optochin-susceptible, gram-positive diplococci
Heavy growth of alpha-hemolytic, catalase-negative, optochin-resistant, gram-positive cocci

Heavy growth of gamma-hemolytic, oxidase-positive, glucose- and maltose-positive, gram diplococci
You would report
A) heavy growth of Streptococcus pneumoniae and heavy growth of normal upper respiratory flora.
B) heavy growth of Neisseria meningitidis and heavy growth of normal upper respiratory flora.
C) heavy growth of normal upper respiratory flora.
D) moderate growth of Streptococcus pneumoniae and heavy growth of normal upper respiratory flora.

Question 2

A catalase-negative, gram-positive coccus that is bile esculin positive and 6.5 NaCl broth positive belongs to the Lancefield antigenic group

A) A. B) B. C) C. D) D.