This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General Microbiology Pa 1 (History, Microscopy, Stains and Structure and Physiology of Bacteria), Subject name: Microbiology
Commonly used Disc diffusion method is also known as: 
Select and explain. 
A. Kirby Bauer method, B. E test method, C. MIC method, D. Stokes method
A: Kirby Bauer method
Answer: A: Kirby Bauer method 
Explanation: Disc Diffusion method is also known as Kirby Bauer disc diffusion method. It is most commonly used method for antibiotic sensitivity testing. It is done on MHA i.e. Mueller Hinton Agar or nutrient Agar. Stokes method - It is better method of disc diffusion because controls are used. However, it is not used commonly because it is costly. E test i.e. Epsilometer test is used to calculate MIC (minimum inhibitory Concenteration)