Fiber optic instruments like endoscopes should be disinfected by: (A) Formaldehyde, (B) Cetrimide, (C) Gamma radiation, (D) Glutaraldehyde
Answer is D. 2% Glutaraldehyde for 20 minutes is active against bacteria, viruses and fungi. Latest 0.5% Ohophthaldehyde is used with 5min Contact period. Ref : Ananthanarayana textbook of Microbiology 9th edition Pgno : 33