NAVEDTRA 14295B CH 10 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 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 does 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 form and burst continuously. What is this process called?
Cavitation
Ultrasonic cleaning time should be limited to how many minutes to avoid damage to instruments?
5
Heat sealed overwrapping 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 sterilize a single load?
Prevacuum, 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 are “flash” sterilized for 3 minutes at what temperature?
270°F
What type of test was developed for prevacuum sterilizers to determine if the air has been removed from the chamber during the prevacuum stage?
Bowie-Dick
How often will all Navy prevacuum sterilizers be tested using the Bowie-Dick type test?
Daily
What is the least expensive form 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
Chemical Vapor Sterilization requires 20-40 minutes at 270°F with what psi when instruments are either unwrapped or bagged following the manufacturer’s instructions?
20
Ethylene oxide (ETO) gas uses relatively low temperatures for 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
What is the only liquid chemical, if properly used, that is capable of rendering an item sterile?
Glutaraldehyde
To be considered sterile how many hours must items be totally submerged in a glutaraldehyde solution?
10
Effective and preferred methods of sterilization are the steam autoclave, dry heat oven, chemical vapor, or what else for surgical instruments?
Ethylene oxide
The three most commonly used sterilization monitors in the Navy are physical, chemical, and what other monitors?
Biological
What type of monitoring involves looking at the gauges and readings on the sterilizer and recording the temperatures, 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
