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
Blood spill in operation theatre is cleaned with? 
Select and explain. 
A. Chlorine compound, B. Phenolic compound, C. Quaernary ammonium compounds, D. Alcoholic compounds
A: Chlorine compound
Answer: A: Chlorine compound 
Explanation: Sodium hypochlorite: Sodium hypochlorite a compound of chlorine is the best disinfectant for surface blood spills, with a concentration of 0.5- 5%. 0.1% Hypochlorite - To disinfect colonized/infected pt. bed in isolation room after cleaning with detergent for 10 mins. 1% Hypochlorite - For decontamination of suction jar, suction tubes, ventilator circuits, oxygen mask, nasal prongs. Blood & body fluid stained instruments and linens (spot soak for 10 min). 2% Hypochlorite - To decontaminate soiled bed pan, toilet basin, commodes for 10 mins. 10% Hypochlorite - To decontaminate large blood spill >10 ml for 15 mins.