Microbio Chapter 9 (test 2)

Vials of microorganisms that undergo the freeze-drying process called ________ will remain preserved and viable for years.

The process of using a cleansing technique to mechanically remove and reduce microorganisms and debris to safe levels is

Disinfection of beverages such as apple juice, milk, wine is optimally achieved by

Which of the following represents the use of osmotic pressure as a microbial control method?

Each of the following is the target of antimicrobial agents except

Removal of moisture by dehydration is called

Physical agents for controlling microbial growth include all the following except

Microbicidal agents are sterilants.

Microbial death occurs when there is

Prions require more extensive methods of sterilization than are needed for bacterial endospores.

A microorganism that is not motile and has stopped metabolizing could be considered dead.

The method of removing vegetative microbial life forms from inanimate objects is termed

Which is correct regarding the rate of microbial death?

Dry heat

The easiest microbial forms to kill or inhibit are

Pasteurization will make milk sterile.

Which of the following items are typically irradiated in order to kill microbes? -human tissues such as heart valves and skin -surgical gloves -meats like ground beef and pork -operating room air

Most microbial contaminants of food are killed at freezing temperatures.

Which of the following factors will influence the action of microbial agents? -the number of microorganisms -the kind of microorganisms -mode and dosage of the agent -temperature and pH

Placing organisms at 4 degrees C is

The use of a physical or chemical process to destroy vegetative pathogens is

The lowest temperature needed to kill all microbes in 10 minutes is the

A cleansing method that mechanically removes microbes and other debris to reduce contamination is

The removal of all life forms from inanimate objects is termed

The shortest time required to kill all the microbes in a sample at a specified temperature is called the

HEPA filters are used to remove microbes from

Which of the following microbial forms have the highest resistance to physical and chemical controls?

Isopropyl alcohol wiped across a skin site can sterilize it.

The use of chemical agents directly on exposed body surfaces to destroy or inhibit vegetative pathogens is

Alcohols -are limited in effectiveness due to rapid evaporation -dissolve membrane lipids at concentrations of greater than 50% -are skin determine agents -can be used for disinfection or antisepsis

Which of the following is not used as an antiseptic?

Which of the following is not a factor that affects germicidal activity? -the strength of the germicide -the length of exposure -the material being treated -the microorganism being treated

Some microbial control agents are able to ________ cell proteins by breaking bonds that maintain the native state (three-dimensional configuration) of the proteins.

NCLEX Prep - Test Bank Question: Please read the clinical scenario, and then answer the questions that follow to become familiar with the traditional NCLEX question format. As an RN in a long-term care facility, you observe precautions to control and prevent the spread of infection. Which concentration of alcohol is deemed most effective in alcohol-based hand cleaners?

Chlorine compounds remain stable and effective in the presence of excess organic matter.

The betadine swab before blood donation is an example of

NCLEX Prep - Test Bank Question: Please read the clinical scenario, and then answer the questions that follow to become familiar with the traditional NCLEX question format. As an RN in a long-term care facility, you observe precautions to control and prevent the spread of infection. As an RN, you diligently practice proper hand washing technique when your hands are visibly dirty. Which of the following terms appropriately describes the type of antimicrobial control provided by hand washing with soap and water?

Ethylene oxide is a sterilizing gas.

NCLEX Prep - Test Bank Question: Please read the clinical scenario, and then answer the questions that follow to become familiar with the traditional NCLEX question format. A woman who is 38-weeks' pregnant is admitted for a scheduled cesarean section. As the RN, you perform an assessment of the patient and prepare her for the surgery. Prior to the procedure, you prepare to place an indwelling urinary catheter. You prepare the patient for the sterile procedure. Which of the following statements, by the patient, best demonstrates understanding of the need for sterile equipment and aseptic procedures?

Agents that can denature microbial proteins include all of the following except