14295B HM manual chapter 10 Disinfection and Sterilization Flashcards
what is the highest level of contamination control because it results in the total destruction of all forms of microbial life
sterilization
what kills disease causing micro organisms but is a less lethal process than sterilization?
disinfection
disinfection is achieved by either chemical or what other means
heat
glutaraldehydes of 2 to what percent are FDA registered
3.2
CHLORINE DIOXIDE HAS A RAPID ACTION OF 3 MINUTES FOR FOR DISINFECTION OR HOW LONG FOR STERILIZATION
6 HOURS
within how many minutes of exposure is iodophors biocidal activity accomplished
10 to 25
HOW OFTEN SHOULD HVE AND SALIVA EJECTOR TUBING AND CUSPIDOR BE FLUSHED WITH A CENTRAL EVACUATION SYSTEM CLEANER
WEEKLY
under what guidelines should anesthetic cartridges for nonsurgical use be dispensed to prevent contamination of bulk supplies
unit dose
at least what level disinfection do all non critical category items require
intermediate
what dose the sterilization process take place in
csr
what process is safer and more effective than manual scrubbing
ultrasonic
the ultrasonic cleaner uses electrical energy to generate sound waves. when the sound waves travel through the liquid, millions of tiny bubbles from and first continuously. what is the process called
cavitation
ultrasonic cleaning time should be limited to how many minutes to avoid damage to instruments
five
heat sealed overwriting will extend a 30 day shelf life to how many days
180
what refers to the complete destruction of all living organisms including bacterial spores and viruses
sterilization
what is the most dependable and economical method of sterilization
steam under pressure (autoclave)
what autoclave is the most modern and economical to operate and requires the least time to sterile a single load
pre vacuum high temperature
at what temperature are all known organisms killed
250 F
all operating rooms are equipped with high speed (flash) sterilizers. wrapped covered opened instruments placed in perforated trays “flash” sterilized for 3 minutes at what temerature
270 F
what type of test was developed for pre vacuum sterilizers to determine if the air has been removed from the chamber during the pre vacuum stage
bowie-dick
How often will all Navy pre vacuum sterilizers be tested using the Bowi Dick type test
daily
what is the least expensive from of heat sterilization
dry heat
how many minutes at 320-345 F plus the time required to preheat the chamber before beginning the sterilization cycle is a typical dry heat cycle
90 min
Chemical vapor sterilization requires 20-40min at 270 F with what psi when instruments are either unwrapped or bagged following the manufacturers instructions
20min
ethylene oxide (ETO) gas uses relatively low temperatures fro sterilization. Using a heated unit sterilization can be achieved in 4-12 hours at 120 F. however a lengthy aeration time of at least how many hours must follow each cycle
16 hrs
What is the only liquid chemical, if properly used, that is capable of rendering an item sterile?
Glutaraldehyde
to ve considered sterile how many hours must items be totally submerged in a glutaraldehyde solution
10 HRS
Effective and preferred methods of sterilization are the steam autoclave, dry heat oven chemical vapor, or what else for surgical insterments
Ethylene oxide
the three most commonly used sterilization monitors in the Navy are physical chemical and what other
biological
what type of monitoring involves looking at the gauges and readings on the sterilizer and recording the temps pressure and exposure time
physical
what type of monitoring (internal and external) involves the use of a heat-sensitive chemical that changes color when exposed to certain conditions
chemical
what are chemical dyes that change color when exposed to steam, dry heat, or chemical vapor for a specified period of time
internal indicators
