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NHOH HM Manual Ch 10
NAVEDTRA 14295B Ch 10: Disinfection and Sterilization
| Question | Answer |
|---|---|
| True or False: Disinfection is a MORE lethal process than sterilization. | False |
| What levels of disinfectants are classified by the EPA? | Intermediate High Low |
| What two types of micro-organisms are killed by all three levels of disinfection? | Lipid Viruses Vegetative Bacteria |
| What are the three factors that influence germicidal procedures? | Bioburden Nature of the Material Organic Debris present |
| What levels of a glutaraldehyde-based solution are FDA registered? | 2.0-3.2 |
| What level of a disinfectant and sterilant are glutaraldehyde-based solutions classified? | High |
| What are disadvantages when using chlorine dioxide-based solutions? | Has a 24-day use life as a sterilant. Does not readily penetrate inorganic debris. Must be discarded daily. |
| True or False: Protective eyewear and gloves are not required when using chemical agents. | False |
| The biocidal activity of iodophors is accomplished with how many minutes of exposure? | 10 to 25 |
| What level of disinfection are iodophors and phenolics classified? | Intermediate |
| All semi-critical category items require should receive what level of disinfection? | High |
| All noncritical category items require at least what level of disinfection? | Intermediate |
| What area of the treatment facility is designed for receiving, cleaning, processing, sterilizing, storing, and issuing instruments and equipment? | Central Sterilization Room (CSR) |
| Which chart tells CSR personnel the specific order equipment, instruments, and materials are to be processed? | Functional Flow |
| In what area of the CSR will the disinfection, cleaning, and lubrication of dental handpieces take place? | Receiving and Cleaning |
| In what area of the CSR will the HM take contaminated instruments after completion of a patient's treatment? | Receiving |
| What cleaning process is safer and more effective than manual scrubbing? | Ultrasonic ONLY |
| How many sinks are needed to allow personnel to perform the manual scrubbing method? | Three |
| What type of cleaning does an ultrasonic cleaner provide? | Cavitation |
| For proper operation, the ultrasonic reservoir should be filled to what level with an ultrasonic solution? | 1/2 to 3/4's full |
| How often must ultrasonic solutions be changed? | Daily or when visibly contaminated |
| You should remove instruments from the ultrasonic unit by what means? | Mesh Basket |
| After drying the instrument, what is the next step in the sterilization process? | Inspection |
| How are hinged instruments arranged during packaging? | Open |
| To allow steam to circulate freely, how should packs be wrapped? | Loosely |
| The period during which sterilized items are considered safe for use is known by which terms? | 1. Event Rotated Shelf Life 2. Expiration Date |
| What type of related shelf life presumes continued sterility until the package is damaged, wet, or torn? | Event |
| What type of related shelf life presumes that after the expiration date the item is considered outdated and should not be used? | Time |
| What is the shelf life for nonwoven blue wrap using the time-related method? | 30 Days |
| What occurs when freshly sterilized items are placed on metal or cold surfaces? | Contamination |
| When storing sterilized items, how should they be arranged? | Expiration, with later dates toward the rear |
| At what temperature are all known organisms killed? | 250 degrees F |
| A steam sterilizer may be referred to by what other name? | Autoclave |
| When placing packages in a sterilizer, how are they placed? | On the Edges |
| What type of sterilizer was designed to overcome the trapping of air in the chamber? | Prevacuum Steam |
| What is the least expensive form of heat sterilization? | Dry Heat |
| All Navy prevacuum sterilizers will be tested how often using the Bowie-Dick type test? | Daily |
| How often is the interior of a steam sterilizer cleaned before heating? | Daily |
| What is the typical standard dry heat cycle? | 90 minutes at 320-345 degrees F |
| What percent of water content, if any, occurs with chemical vapor sterilization? | 15 |
| True or False: Instruments being sterilized in the STERRAD do not need to be completely dry. | False |
| What type of sterilization is STERRAD? | Plasma |
| What type of sterilization indicator will change color upon short exposure to sterilizing conditions such as steam, dry, heat, or chemical vapor? | Internal |
| What type of sterilization monitor will assess whether sterilization actually occurred? | Biological |
| What is the first step to be performed when positive biological monitoring occurs? | Notify ICO |
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