Give double zone in blood agar.. β-hemolytic streptococci

publisher :NIL NAM -July 03, 2017

Give double zone in blood agar:
a. α-hemolytic streptococci
b. β-hemolytic streptococci***
c. ALL
d. Non.

A patient who received spinal anesthesia four hours ago during surgery is transferred to the surgical unit and, after one and a half hours, now reports severe incisional pain