Combination of amoxycillin with clavulanic acid is active against all of the following organisms except: (A) MRSA, (B) Penicillinase producing Staph, aureus, (C) Penicillinase producing N. gonorrhoea, (D) Beta lactamase producing E. coli
Answer is A. Ans. (A) MRSA(Ref: GG 1479)Methicillin resistance occurs due to altered penicillin binding proteins, therefore cannot be reversed by b-lactamase inhibitor like clavulanic acid