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43 Cards in this Set
- Front
- Back
Method that determines presence of pathogenic bacteria on objects subjected to sterilization process.
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Biological Control
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Method of sterilizing prepackage equipment
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Cobalt 60 radiation
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Toxic gas that is capable of sterilization.
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Ethylene oxide gas
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Absorbed moisture may be seen or felt. Water droplets may be visible on inside or outside.
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Wet Load (wet packs)
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Sterilizers designed to use steam under pressure as sterilizing agents
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Autoclaves
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Type of sterilizer that removes are by gravity
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Gravity displacement sterilizer
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Steam Sterilizer that removes air in chamber by vacuum
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High vacuum sterilizer
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used for identification and retrieval of supplies. recorded as a Julian or Georgian date
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Load control number
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Used to measure if proper temperature, pressure, and time were reached
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Chemical Indicator
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Duration for which sterility is assumed to be maintained
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Shelf life
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Processed by which pathogenic and non-pathogenic microorganisms including spores, are killed
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Sterilization
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Procedures carried out for the destruction of pathogens at the end of the surgical procedure in the OR or other areas of patient contact
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Terminal Sterilization and Disinfection
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Steam under pressure/ dry heat.
Hot air/dry heat |
Thermal Sterilization process
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Ethylene oxide gas. Formaldehyde gas and solution. hydrogen peroxide plasma/vapor, ozone gas, acetic acid solution, Gluteraldehyde solution, paracetic acid 0.2% solution
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Chemical Sterilization Processes
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Moist heat in the from of steam under pressure cause denaturation and coagulation of protein or the enzyme-protein system within cells 250* for 15 min.
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Steam under pressure / Moist heat sterilization
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Steam under Pressure displacement aire downward through wrapped items, 250*-254*F, 15-17 PSI, exposure time period size of the chamber and the contents determines the exposure time 15 MIN.
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Gravity displacement
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270*-276*F, chamber pressure 27 psi, exposure time period 4min, takes 15 to 30 min for complete cycle. Air is almost completely evacuated from chamber before sterilizing steam is admitted. procedure allows for rapid and near compleat air removal
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Pre-vacuum
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to ensure air vacuum pump is functioning correctly
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Bowie Dick test performed daily
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temp 270*-274*F, 27psi or 22psi @ 5000 ft above sea level. 3min for unwrapped stainless steel without lumans. 5 min instruments with marking tape on lumen 4 min in prevacuum sterilized longer than 10 min in gravity. to sterilized small quantities not for items to be permanently implanted. may operate as gravity displacement or prevacuum.
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Flash/ High Speed pressure
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85*-145*F humidity 30%- 80% Chemical alkylation agent kills microorganism including spors intering with normal metabolism.
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Ethylene Oxide (EtO or EO)
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Ethylene oxide gas (EtO or EO) dependent on 4 variables
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1. CFC-12 obsolete by 2000 harmful to ozone layer.
2.HCFC-124 (Oxyfume 2000 sterilant replace CFC-12) 3.100% EO unit dose cartridges 4. EO/CO2 (10/90) must mintain high pressure cycle. |
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Alternative method for sterilizing if gas or plasma sterilizers are not available minimally invasice for heat sensitive items. Items must be immersed in solution for required time to be sporicidal.
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Liquid chemical
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kills microorganisms by denaturation of protein in cells. effected at room temp. fumes may have mild odor and can be irritation to eyes, nose, and throat if solution becomes diluted below 15% must be discared. 10hrs as sterilant
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Activated Glutaraldehyde 2% (cidex)
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Non-toxic 35% peracetic acid, hydrogen peroxide, and water. low temp solution 122*-131* F during the 20-30 min sterilization before using washed thorougly, rinsed, dried
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Peracetic Acid (steris)
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used as a sterilant by converting it from a liquid to either a vapor or to plasma. produced by either and electri or magnetic field.
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Hydrogen peroxide sterilizers
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104* F; sterilized in 1 hr. Subjects the liquid hydrogen peroxide to radio frequency energy to form a reactive plasma. water and 58% hydrogen peroxide is vaporized by radio frequency energy
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Gas plasma Sterilizer (Sterrad)
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use low-pressure steam with non ionizing radiation. chamber size 1 to 3 cubic feet
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Microwave Sterilization
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sterilized by irradiation (ionizing radiation); Bata Particles & Gamma Rays; Cobalt 60 most commonly used. Exposed 10-20 hrs. monitored with biologic indicator (bacillus pumilus). Size 1.5 cubic ft. to more than 70 cubic may have 1 or 2 doors hinged or sliding
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Gamma Ray Sterilization
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Large packs are place ____ to ___ inches apart in one layer only on one shelf of the autoclave.
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2 to 4 inches
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Small packages may be placed on shelf aboce with __ to __ inches and small packages place on top of another should be ___________.
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1 to 2 inches and crisscrossed
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Drying load after sterilizer doors is oped loads of wrapped packages are left untouch to dry for ___ to ___ minutes and package should be compleately dry after cooling for min of __ hr after placed on a wire mesh padded with absorbent materials.
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15 to 60 min cooling for min for 1 hr
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field day is ___ a week secure the steam power to the autoclave the night prior to cleaning allows autoclave to cool use a mild detergent and a soft brush.
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once
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devices which monitors function of sterilizers. identifies process errors in packaging and loading IE gauges, thermometers, timers, recorders
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Mechanical Indericators
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Verifies exposure to the sterilization process visible on out side of the on-site sterilized package detects sterilizer malfunction or human error in packaging or loading sterilizer
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Chemical indicators
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Sterility of load is evidence by killing of all spores on biological test indicators, detects non-sterilizing condition in the sterilizer.
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Biologic indicator
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Enzyme becomes flourescent yellow with in ___ min as the spores are killed
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60 min
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a control test is performed a min of ___ weekly in each sterilizer but many hospitals perform ___ or each cycle
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WEEKLY. DAILY
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test pack placed on edge in lower front of load (fully loaded chamber) content of test pack is 3 woven fabric gowns, 12 towels, 30 gauze sponges 4x4, 5 laparotomy tapes 12x12, and 1 woven drape sheet.
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biologic challenge test for Gravity Displacement
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same as Gravity test pack; Bowie -dick test; place on bottom shelf at front near door over drain of EMPTY chamber. test contains 28-32 absorbent towels one bowie-dick test, commercially prepared test packs
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Biologic challenge test for Prevacuum
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Shelf Life temp maintained below ___ degrees F and relative between ___ % and ___ %. ___ air exchanges per hr is recommended
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80 degrees F; 30% and 60%; 10 air exchanges per hr.
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woven fabric and paper wrapped items may be stored in closed cabinets in enclosed or covered carts for up to ____ days
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30 days
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highest shelf should me at least ____ inches below ceiling and __ inches off the floor.
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18 inches below ceiling and 8 inches off the floor
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Hermetically (air tight) sealed package arbitrarily determined sterile for ____ to ___ months
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6 to 12 months
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