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- 1. Which of the following methods is the best way to sterilize the apparatus used in a surgical operation? A. Pasteurization B. Incineration C. Boiling in water D. Autoclaving E. Disinfect with 75% alcoholILLUSTRATIONS: 1. Sterilizers seen in the laboratory and their parts.2. Which of the following statements is true regarding steam sterilization? a. It is a universal technique, applicable to a product of any nature. b. At the same temperature, usually more effective than dry heat. c. Steam sterilization is amenable to a continuous workflow. d. The purpose of the steam is to keep the product from drying out during sterilization. Steam cannot be combined any other sterilization technique. е.
- 3. Describe the following inexpensive measures of treating drinking water: A. Boiling B. Chlorination C. Solar water disinfection (SODIS) 4. Why is boiling water not a recommended sterilization method? 5. List examples of transfusion-transmitted infections. How are these infections prevented?1. Given the following common laboratory materials, which of the three methods of heat sterilization do you think is the most appropriate and practical to use in sterilizing them Why do you think so ? Method of heat sterilization Reason a. Empty flasks b. L-rod (glass rod) c. 10 ml glass pipet d. Wire needles e. Antibiotic solution1. What is the hazard of the spattering tendency in heating a wire loop with specimens over a flame? 2. Why is heat a highly effective sterilizing agent?3. Which of the three methods of heat sterilization is the most appropriate and practical to use in sterilizing antibiotic solutions? (Direct flame, Dry heat, Moist heat)
- 1-The method of sterilizations we used in the tissue culture lab a. Fumigation b. Filtration C. Autoclave d. Sun light1. What is the key ingredient of hand sanitizers?  include a image of the chemical structure of the ingredient and explain how it works 2. What did Ignacio Semmelweis discover? Describe the situation and what he recommended to the medical community 5. Define the following terms a. Sterilization b. Asepsis c. Disinfection d. Antisepsis e. Bactericidal f. Bacteriostasis
- Neutralization of residual disinfectant could be made by: a. Dilution if the concentration exponent is high b. Dilution if the concentration exponent is low c. Adding specific agent e.g. 3% Tween 80 d. Either a or c e. Either b or c3. Principles and methods of sterilization2. Mechanical disinfection is typically more effective than manual techniques.