CBSPD Exam

25 July 2022
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126 test answers

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question
What should the sterilizer access area pressure be?
answer
Negative w/10 air exchanges per hour
question
What two steps are involved in decontamination?
answer
1. Manual and/or automated mechanical cleaning 2. application of a thermal or chemical disinfection process
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Define Cleaning...
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The removal of contamination from an item to the extent necessary for further processing or for the intended use.
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nosocomial infections are well documented and caused by...
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poor or ineffective decontamination of instruments
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What are Employee hazards in the decontamination process?
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Technicians work with a large amount of 1) unidentified bioburden 2) wet enviornment 3) handling contaminated sharps 4) must know procedures for proper handling, equipment, cleaning/sterilization agents
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How do you properly clean a device?
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follow the device manufacturer's written instructions
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What is the starting point in sterilization?
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Cleaning
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Define decontamination
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The process of cleaning surgical instruments, patient care devices, and all involved surfaces in order to render areas and items safe for handling and/or further processing
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What are physical safety hazards?
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-good body mechanics -correct body techniques and posture for lifting, pushing, pulling, and reaching -should be alert and correct anything that is a potential injury -lifts to lift heavy supplies, available work material, adjustable chairs, padding on sharp edges, correct height tables -proper clothing can prevent injury
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What is the weakest point of an instrument?
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Box lock and jaws
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What does the ABC system stand for?
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A: large dollar amount items not used frequently B: moderately priced and used frequently C: items w/ low dollar value
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What is just in time distribution?
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Items are distributed to department by vendor no need for sterile storage or inventory control.
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What are specialty/ procedure carts?
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Carts placed in specific departments based on procedures personalized to needs of departments easily accessible.
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What is case cart distribution?
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visually in specialty areas case carts are delivered to department case cart is specialized to departments needs
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What is the exchange cart distribution?
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Two identical carts are made one is out in the department and other stays in SPD
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What is par level distribution?
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There is fixed inventory and when items become low they are replenished from the stockroom per department/specialty
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What is demand distribution?
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An instrument/cart must be ordered in order to get it
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What are the most common distribution systems?
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1) demand 2)par-level 3)Exchange 4)case carts 5) Specialty 6) Just in time
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What is the air pressure of the sterile storage area?
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positive air flows out
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What is shelf life
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period of time which a sterile item is considered safe to use event related not time related
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When are packs most vulnerable to contamination?
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Immediately after sterilization
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What is it when a sterilizer's ability is tested under worst case conditions?
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Small load testing
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What is it called when a sterilizer is tested for sterilization under actual use conditions?
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Max load testing
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How often is a Bowie Dick test ran?
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Daily for dynamic air removal sterilizers
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How much space should be between packages and chamber wall?
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one inch
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How should paper-plastic pouches be placed in a sterilizer?
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plastic to paper or paper to plastic tilted on side
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How should basins be placed in a sterilizer?
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on tilted side same direction
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What should be placed on the bottom of the rack in a mixed load?
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metal instruments basin other metal items
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What should be placed on the top shelf?
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textile packs and paper/plastic pouches
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Textile packs should be placed how in a sterilizer?
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sides
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Solid bottom trays should be loaded now?
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tilted on sides
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How should mesh bottom containers be loaded into the sterilizer?
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flat on rack
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If packages are still moist when the sterilizer doors are open bacteria can do what?
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wick through the package
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How does steam sterilization occur?
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by condensation
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What cases are proven to have prions?
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1) neurosurgery 2) opthamology (eye)
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When should a flash sterilizer be monitored?
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Weekly with a biological and a class 5 or class 6 indicator
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What can not be processed in an express cycle?
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porous items items with lumens
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When should a flash sterilizer be used?
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In an emergency; a one of a kind instrument is dropped
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How are liquids sterilized?
answer
only through gravity displacement liquid cycles
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What occurs during the drying phase?
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Dynamic Air Removal: Filtered air is drawn in achieve drying Gravity: Heat in chamber evaporates moisture *Approx.: 30 min. for both
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What occurs during the exhaust phase?
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steam is exhausted from the chamber drain line
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What occurs during he sterilization/exposure/"holding phase"?
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exposure temperature is maintained for the prescribed amount of time
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What occurs during the conditioning phase of steam sterilizers?
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Air is removed and steam is injected
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Where should the bowie dick test be placed in a steam sterilizer
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drain line
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Where is the sterilizers heat-sensing thermometer located?
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Drain- line
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What provides heat inside the chamber and prevents condensation in a steam sterilizer?
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the jacket
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where is the dedicated steam supply made?
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a boiler
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Steam kills microorganisms by_______ the protein
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denaturing (coagulation)
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True/false Removing as many microorganisms as possible before sterilization enhances the probability of microbial kill
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true
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What is the air exchange in sterile storage
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4 per hour
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What is the suggested release temperature of packs?
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70 to 80 degree farenheit
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How far from the floor should medical devices be stored?
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8-10 inches from the floor
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How far should shelving be from outside walls?
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2 inches
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What kind of pressure should the sterilization area be under?
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positive
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What is the coldest area of the sterilizer?
answer
drain line
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What are the three parameters of steam sterilization?
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1) Steam under pressure 2) time 3) Exposure/temperature
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What are the two types of cycles in steam sterilization?
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1) dynamic air removal (pre-vac) 2) Gravity Displacement (immediate use)
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What are the phases of the cycle?
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1)conditioning (air is removed) 2)sterilization/Exposure/ Hold (temperature is held) 3) Exhaust (steam out drain line) 4) drying (approx. 30 min.)
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It takes a certain ______ to reach a certain ____________
answer
Pressure temperature
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What are the types of sterilization processes used?
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1) steam 2) EtO 3) Dry Heat 4) Gas plasma 5) Ozone 6) liquid chemical
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What does a class on indicator respond to?
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Only one parameter of the process (ex.: autoclave tape)
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Geobacillus steurothermophilus must be incubated at what temp.?
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132 degrees farenheit
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What should the incoming saturated steam dryness be?
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ideally 97% to 100% saturated steam
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What should the sterility assurance level be?
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10^-6
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When a new sterilizer comes in or relocated how many consecutive biologicals be ran in an empty sterilizer?
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three
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How many air exchanges should there be in the sterilization area?
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ten
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Class five responds to
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all critical parameters
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Class three responds to
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single parameter respond to one chemical parameter
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Biological monitors contain...
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spores geobacillus stearothermophilus
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The biological used for team, ozone, and pareacetic sterilization contains....
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Geobacillus Stearothermophilus
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The biological used for EtO, gas plasma, and dry heat contains...
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Bacillus atrophaeus
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True/False Adequate cleaning will lead to easier sterilization b/c it reduces present bioburden
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true
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When must a control biological be ran?
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Daily or when a new lot number is present
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When are biologicals placed for steam sterilization?
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Coldest point (drain line)
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Where do you place biologicals for EtO sterilization?
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Approximately the center of the load
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Where are biologicals placed for gas plasma sterilization?
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First shelf back of chamber
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If no microorganisms survived, the biological test is the positive or negative?
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Negative
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If microorganisms survive the biological test is considered positive or negative?
answer
posititve
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If bacteria lives what color does the biological turn?
answer
yellow
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When a BI tests positive you must...
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Determine why it failed and recall everything from that cycle and reprocess it
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Steam sterilizers should be monitors at a minimum of...
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weekly
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Each package ran through sterilizers should be labeled with what?
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1)lot number 2)date 3)cycle number
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What must CSD comply with?
answer
local and state regulations
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What is decontamination?
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contaminated items are rendered safe for handling by personnel who are not wearing protective attire
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What does the EPA regulate?
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EtO manufacturing and emissions, and labeling
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What agencies govern central sterile departments?
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-joint commission (JC) -occupational safety (OSHA) -Environmental (EPA) -Food and Drug (FDA)
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Is JCAHO a government agency?
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no it is a volunteer organization
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The standards of _____________ affect most areas of the health care facility.
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Joint Commision
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What should large items be lifted with?
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If too large, then a lift must be used; if can be lifted with body use legs not back/arms
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What can an incident report lead to?
answer
Work practices that need improvement
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What should be in an incident report?
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-how the accident happened -where/ when it occurred -any witnesses -medical treatment given -any work time lost due to accident -description of corrective actions to prevent the recurrence of the accident
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When should an incident report for an accident/injury be reported?
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immediately
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What items can be disinfected?
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-surgical instrumentation -patient care equipment -other medical devices from all areas of the institution
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When is disinfection used?
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When cleaning alone might not be enough to make an item safe for reuse or further handling without transmitting disease
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Decontamination activites should not take place when
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clean activities are being performed (prep, packaging, and sterilization)
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What kind of containers should sharps be kept in?
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impervious (puncture proof), and leak proof containers
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Acrylic nails are...
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prohibited because the support the growth of microorganisms
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How long should fingernails be kept?
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Short
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Why should jewelry not be worn?
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cannot be easily cleaned can catch on equipment causing injury
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True/false eyewash stations must be available in the decontam area and in areas where disinfectants are being used and a hands free operation
answer
True
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Is the use of PPE optional?
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no
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PPE must not...
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permit blood or other potentially infectious materials to pass through or reach the employees work clothes, street clothes, undergarments, skin, eyes, mouth, or mucous membrane during the time of use
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Individuals entering the area must...
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wear PPE
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traffic in the decontamination area must be restricted to?
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individuals with job responsibilities in the area
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Provisions for the cleaning of walls, vents, and drains should be made because...
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to inhibit he growth of microorganisms in the traps, prevent insects, prevent emission of noxious odors
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How should the work flow in decontamination?
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clean to dirty areas with decontamination being the last area cleaned
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Floors and work surfaces should be cleaned?
answer
daily in accordance to the policies and procedures
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How many air exchanges should there be in the decontamination area?
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10 per hour
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Air should be exhausted where?
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directly to the outside not recirculated
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temp. and humidity should be monitored and documented daily, when it reaches above/below those standards what should you do?
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the discrepancies should be reported to the SPD manager or supervisor
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Negative air pressure should...
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be drawn into the room
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what helps control biofilm in pipes
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Chlorination of water ad flushing of delivery systems
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What are biofilms
answer
Biofilms are microbial communities that are tightly attached to surfaces and cannot be easily removed; Bacteria is 1000x more resistant than bacteria in suspension
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Soaking items for too long should be avoided. Why?
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because of the potential for biofilms
question
Items with multiple parts should be disassembled according to what?
answer
Manufacturer's IFU
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What are the basic steps in the cleaning process?
answer
-sorting -disposing of single-use items -prerinsing/presoaking reusable items -washing -rinsing -drying
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True/False disinfection and/or sterilization will not compensate for poor cleaning
answer
True
question
a sterilized instrument is opened but not used what should happen?
answer
treat as contaminated and completely reprocess it
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What is a pyrogen?
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fever reducing substances
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What does cleaning and rinsing do?
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remove rather than kill microorganisms
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What is the most important step in the decontamination process?
answer
cleaning followed by thorough rinsing
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Before an instrument is cleaned what must be obtained?
answer
The manufacturer's IFU
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What is the objective of decontamination?
answer
To make an item safe for reuse and/or further handing
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Organic soils should not be able to dry on instruments, how can you accomplish this?
answer
1) Placing a towel moisteneed with water (not saline) over the instruments 2) Using an instrument spray designed for pre treatment (enzymatic foam/ gel that adheres to the surface to begin breaking down soils)
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When should sharps containers be changed?
answer
2/3 full to help prevent sharps injuries
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What can the quality of water affect?
answer
1) how the detergent will work 2) how much detergent is needed