Exam 9: Physical and Chemical Control of Microbes

Beginning Fall 2017,the FDA banned the use of phenolic compounds,such as triclosan,in consumer soaps and lotions.  This is due to ________.

Which of the following statements is true when comparing moist heat methods of microbial control to dry heat control?

What instrument is most effective for pressure-temperature sterilization?

The method of removing vegetative life forms from living surfaces is termed ________.

The chemical agent that produces highly toxic and reactive free radicals is ________.

HEPA filters are used to remove microbes from ________.

A woman who is 38 weeks pregnant is admitted for a scheduled cesarean section. The RN performs an assessment of the patient and prepares her for the surgery. Prior to the procedure, an indwelling urinary catheter is placed. -The RN cleanses the urethral opening with an iodine swab.Which of the following terms most appropriately describes this method of microbial control?  

Which pair of physical control methods will achieve complete sterilization?

Each of the following is the target of antimicrobial agents except ________.

Most microbial contaminants of food are killed at freezing temperatures.

When a control agent targets the metabolic processes of microbial cells,active younger cells typically die more rapidly than older cells.

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

An RN in a long-term care facility oversees the care of 15 patients. He observes precautions to control and prevent the spread of infection. -The RN practices proper handwashing technique when his hands are visibly dirty.Which of the following terms most appropriately describes the type of antimicrobial control provided by handwashing with germicidal soap and water?  

Pasteurization does not kill endospores or thermoduric microbes.

Pasteurization ________.

In lab,inoculating loops are sterilized using ________.

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

The removal of all life forms from inanimate objects is termed ________.

Temperature and time must be considered when determining susceptibility of microbes to lethal conditions.  At a specific temperature,the thermal death ________ can be determined,alternatively,the thermal death ________ can be assessed as the lowest temperature that will kill a test organism in 10 minutes.

The alcohol wipe before an injection is an example of ________.