Physical and Chemical Agents Which of the following disinfectants act by disrupting microbial membranes? Halogens Heavy metals Aldehydes Cationic detergents Halogens Heavy metals Aldehydes Cationic detergents ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following methods will not sterilize? Dry heat at 171°C for 1 to 2 hours Aqueous glutaraldehyde for 10 hours 121°C at 15 lb/in pressure for 15 to 20 minutes 100°C boiling water for 30 minutes Dry heat at 171°C for 1 to 2 hours Aqueous glutaraldehyde for 10 hours 121°C at 15 lb/in pressure for 15 to 20 minutes 100°C boiling water for 30 minutes ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents If a 1:600 dilution of a test compound kills a standard population of Staphylococcus aureus in 10 minutes but not 5 minutes while a 1:60 dilution of phenol kills the population in the same time, what is the phenol coefficient of the test compound? 1 10 50 5 1 10 50 5 ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents The lowest temperature that kills all microorganisms in a liquid suspension in 10 minutes is known as the thermal death point thermal death time thermal death temperature decimal reduction time thermal death point thermal death time thermal death temperature decimal reduction time ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following material is sterilized by use of red heat? Soiled dressings All-glass syringes Inoculating wires and loops Glass slides Soiled dressings All-glass syringes Inoculating wires and loops Glass slides ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which is the most important surface active disinfectants? Non-ionic compounds Amphoteric compounds Anionic compounds Cationic compounds Non-ionic compounds Amphoteric compounds Anionic compounds Cationic compounds ANSWER DOWNLOAD EXAMIANS APP
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