Interpretation of Result
-
The zone of inhibition is defined as complete absence of any visible growth of bacteria around the disc.
-
After incubation, the zone of inhibition is read with the help of scale or caliper.
-
The diameter of the zone is read from the back of the plate as it is clear in the case of MH plate and over the surface of the agar in the case of blood agar plates (for Streptococci).
-
The transmitted light can be used to see any faint growth of colonies in the margin of the zone of inhibition.
- Sensitive (Click here to view image...)
-
If the zone of inhibition is equal to or above the prescribed limit for the respective antibiotic then the concerned antibiotic can be declared as sensitive.
-
Then, the infection may respond to the treatment at the normal dosage level
Considerations during the interpretation
|
Last modified: Sunday, 25 September 2011, 9:53 AM