front 1 Chemical germicides | back 1 Substances designed to reduce the number of pathogens on a surface, in a liquid, or in living tissue |
front 2 Disinfectants | back 2 Germicides designed for use on surfaces like floors, tables, sinks, countertops, surgical instruments, or liquids are called disinfectants |
front 3 Antiseptics | back 3 Germicide's designed for use on or in living tissue |
front 4 Use dilution test | back 4 A standard procedure used to measure the effectiveness of disinfectants specifically against staff, salmonella, pseudomonas, cholerasuis |
front 5 What is the standard procedure for the use dilution and test | back 5 And the standard procedure, glass beads or stainless steel cylinders coated with living bacteria are exposed to varying concentrations, dilutions, of test germicides then transferred to a growth medium. After a period of incubation, the medium is examined for growth. If a solution is sufficient to prevent microbial growth at least 95% of the time, it meets the required standards and is considered a usable dilution of that germicide for a specific application. |
front 6 Which disinfectants and which antiseptics will we be using in the exercise? | back 6 The disinfectants selected are household bleach and Lysol brand 2 disinfectant. The antiseptics are hydrogen peroxide and isopropyl alcohol. |
front 7 If, during exposure to the germicide, all of the bacteria on the bead are killed, what happens to the inoculated broth? | back 7 The broth inoculated with that bead will remain clear |
front 8 What happens if any of the bacteria survive the germicide exposure? | back 8 They will be produced during incubation and make the broth turbid |