Diluent for trimethoprim in antibiotic disc for sensitivity testing is: (A) Na OH solution, (B) Na hco3, (C) Ethanol, (D) Acetic acid
Answer is D. Diluent for trimethoprim in antibiotic sensitivity testing is acetic acid Sod bicarbonate for amoxicillin and ceftazidime Ref: Textbook of Microbiology Baveja 4th ed Pg 629