Physical and Chemical Agents The organisms retained in the fluids filtered by Seitz filter is None of these Proteus Staphylococcus Clostridium None of these Proteus Staphylococcus Clostridium ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents The time required to kill 90% of the microorganisms in a sample at a specific temperature is the decimal reduction time thermal death point D value F value decimal reduction time thermal death point D value F value ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which disinfectant would be most effective against Staphylococcus found in a blood spill? Phenol Cetylpyridinium chloride None of these Hexachlorophene Phenol Cetylpyridinium chloride None of these Hexachlorophene ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents One drawback to the use of ultraviolet light as a sterilizing agent is its failure to kill bacteria failure to kill microbes in a closed environment failure to bacterial spores failure to kill microbes located in the center of an object failure to kill bacteria failure to kill microbes in a closed environment failure to bacterial spores failure to kill microbes located in the center of an object ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following is best used for long term storage of microbial samples when carried out properly? Storage in a freezer at ultra low temperatures (-70°C) Storage in a freezer at -10°C Storage in a refrigerator on an agar slant Storage on a petri plate at room temperature Storage in a freezer at ultra low temperatures (-70°C) Storage in a freezer at -10°C Storage in a refrigerator on an agar slant Storage on a petri plate at room temperature 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 121°C at 15 lb/in pressure for 15 to 20 minutes 100°C boiling water for 30 minutes Aqueous glutaraldehyde for 10 hours Dry heat at 171°C for 1 to 2 hours 121°C at 15 lb/in pressure for 15 to 20 minutes 100°C boiling water for 30 minutes Aqueous glutaraldehyde for 10 hours ANSWER DOWNLOAD EXAMIANS APP
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