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level: STERILIZATION

Questions and Answers List

level questions: STERILIZATION

Question	Answer
Process by which all forms of life, including bacterial spores are destroyed by physical or chemical process	STERILIZATION
Process of destroying microbial life but not resistant bacterial spores thorugh the use of heat or chemical agent	DISINFECTION
STEAM UNDER PRESSURE: temperature	TEMP: 121°C (250°F) and 132°C (270°F)
STEAM UNDER PRESSURE: how long at 121°C to sterilize in gravity displacement for rough instruments	30 mins
STEAM UNDER PRESSURE: how long at 121°C to sterilize in gravity displacement for unrough instruments	20 mins
STEAM UNDER PRESSURE (prevaccum sterilizer): rough	4 mins
STEAM UNDER PRESSURE (prevaccum sterilizer): unrough	3 mins
STEAM UNDER PRESSURE: Most common steam sterilization cycle	traditional gravity sterilization cycle
TRUE OR FALSE: STEAM UNDER PRESSURE: you can use mineral water	FALSE
sterilizing porous loads or partially vented containers, where air cannot be easily displaced from an autoclave chamber, rendering gravity air displacement ineffective.	Vacuum Sterilization Cycle
cages with animal bedding, wrapped goods, and surgical packs	Vacuum Sterilization Cycle
moist heat in the form of saturated steam under pressure is the most widely used and the most dependable.	Vacuum Sterilization Cycle
nontoxic, inexpensive, rapidly microbicidal, sporicidal, and rapidly heats and penetrates fabrics	Vacuum Sterilization Cycle
Fast and dependable, non-toxic, no chemicals, antimicrobial, rapidly heats and penetrates fabrics	Vacuum Sterilization Cycle
DISADVANTAGES: Corrosion and combustion of lubricants associated with dental handpieces	Vacuum Sterilization Cycle
DISADVANTAGES: reduction in ability to transmit light associated with laryngoscopes	Vacuum Sterilization Cycle
DISADVANTAGES: increased hardening time (5.6 fold) with plaster-cast	Vacuum Sterilization Cycle
should be used whenever possible on all critical and semicritical items that are heat and moisture resistant.	Vacuum Sterilization Cycle
UNSATURATED CHEMICAL VAPOR: heating a chemical solution, primarily ___________, in a closed pressurized chamber.	alcohol with 0.23% formaldehyde
causes less corrosion of carbon steel instruments (e.g., dental burs) than steam sterilization because less water is present during the cycle	UNSATURATED CHEMICAL VAPOR
This sterilizer is some as autoclave unlike it uses special chemical solution containing formaldehyde and alcohol	UNSATURATED CHEMICAL VAPOR
UNSATURATED CHEMICAL VAPOR: The chemical vapour kills microorganisms by destroying ______-.	vital protein systems
STERLIZATION CYCLE FOR CHEMICLAVE: TEMPERATURE IN CELCIUS	132
STERLIZATION CYCLE FOR CHEMICLAVE: PRESSURE IN LBS	20
STERLIZATION CYCLE FOR CHEMICLAVE: TIME IN MINS	20
Dry heat kills microorganism by	oxidizing molecules
Cheapest sterilizing method; Usually used by vets, public dentists in hospitals	PROLONGED DRY HEAT
glassware, metal instruments, paper wrapped things and syringes	PROLONGED DRY HEAT
PROLONGED DRY HEAT: TIME AND TEMP	160 °C (320 °F) for 2 hours or 170 °C (340 °F) for 1 hour
High Velocity Hot Air sterilisers time and temp	190°C (375°F) for 6 to 12 minutes.
PROLONGED DRY HEAT: CONSIDERATION	Items should be dry
a medical treatment that utilizes light to activate a photosensitizing agent PS in the presence of oxygen.	PHOTO ACTIVATED DISINFECTION
PHOTO ACTIVATED DISINFECTION: STERILIZES WHAT	Root canal
forms of sterilizing monitoring:Involves physically looking at the gauges and readings on the sterilizer and recording the temperatures, pressure, and exposure time.	Physical
forms of sterilizing monitoring:You can see the recordings, temperature, pressure, and exposure time	Physical
forms of sterilizing monitoring:Use of heat sensitive chemical; they change to colors when exposed to certain condition	Chemical
types of chemical indicators:are placed on the outside of the instrument packages before sterilization.	process indicator
types of chemical indicators:They respond to heat only.	process indicator
types of chemical indicators:Aim to determine if the package processed or not; If not, sterilization is not achieved	process indicator
types of chemical indicators:To simply identify the instrument that have been exposed to a certain temperature	process indicator
types of chemical indicators:instrument tape or color change marking indicators that do not measure the duration or the pressure, they only distinguished if the package is processed already or not	process indicator
types of chemical indicators:are placed inside instrument packages, and they respond to a combination of steam and temperature and time.	process integrator
forms of sterilizing monitoring:best way to determine if sterilization has occurred	biologic
forms of sterilizing monitoring:Biologic recommend at least ____ biologic monitoring of sterilization equipment.	weekly
forms of sterilizing monitoring:vials or strips of paper that contain harmless bacterial spores	Biologic Indicators
forms of sterilizing monitoring:Biologic Indicators is also called	spore tests
Sterile materials should be stored at least ___ inches from the floor,	8 to 10
Sterile materials should be stored at least ___inches from the ceiling	18
Sterile materials should be stored at least __inches from outside walls.	2