CRCST Exam with correct answers

CRCST Exam Classification for Sterilization Packaging - correct answer Class II Medical Devices (those presenting a potential risk) Packaging used for steam sterilization must be capable of withstanding high temperatures of? - correct answer 250'F - 275'F (121'C - 135'C) Process in which a device is actively subjected to moving air; Ex items being sterilized with ethylene oxide gas. - correct answer Aeration Microorganism that requires the presence of air or oxygen for growth. - correct answer Aerobe Packaging choices for dry heat sterilization must be able to tolerate? - correct answer 2-3 hours exposure time and temperature of 320'F - 400'F (160'C - 204'C) Packaging choices for gas plasma sterilization must be able to tolerate? - correct answer A deep vacuum draw without absorbing the sterilant, interrupting the cycle, or damaging the contents. Broad term describing a wide variety of plain-weave cotton/polyester fabrics having approximately 140 threads per square inch. - correct answer Muslin The condition that arises when steam is at a temperature which exceeds that of saturated steam at the same pressure. - correct answer Superheating All linen packaging materials should be held at? - correct answer Room temperature (64'F to 72'F; 18'C to 22'C) and at a relative humidity ranging from 35% to 70% for a minimum of two hours prior to sterilization. A non-woven packaging material which is the most popular flat wrap. - correct answer SMS (spunbond-meltblown-spunbond) Sterility Maintenance Covers - correct answer Should be at least 2 to 3 mils thick. The over -wrap should be clearly marked as a "dust cover" or "protective wrap" to prevent its use as a part of the sterile field. All packaging material should be held at - correct answer Room temperature (67'F to 72'F; 18'C to 22'C) and at a relative humidity ranging from 35% to 70% for a minimum of two hours before sterilization ANSI/AAMI ST77 recommends a maximum weight __ of for containerized instruments sets - correct answer 25 pounds Sterility (time-related) - correct answer A package is considered sterile until a specific expiration date is reached Sterility (event-related) - correct answer Items are considered sterile unless the integrity of the packaging is compromised (damaged) or suspected of being compromised (damage) regardless of the sterilization date. This sometimes is referred to as ERS (Event-Related Sterility) Point of Use Processing - correct answer That which allows when a medical device is processed immediately before use, and/ or close to the patient are area Flash sterirization - correct answer The process by which unwrapped instruments are sterilized for immediate use when an emergency situations arises AAMI - correct answer Association for the Advancement of Medical Instrumentation AORN - correct answer Association of peri-Operative Registered Nurses Class 5 (chemical integrators) - correct answer Integrating indicators designed to react to all critical parameters over a specified range of sterilization cycles Geobacillus Stearothermophilus - correct answer Highly resistant but relative harmless nonpathogenic microorganism used to challenge steam and dry heat sterilizers A measure of ambient air pressure; the pressure that gas would exert on the walls of a one-cubic foot container - correct answer Pounds per square inch gauge (psig) Quaternary Ammonium Compounds (quats) - correct answer Low-level disinfectant. One member of its family: benzalkonium chloride Are cationic surface-active compounds also known as "wetting agents" - correct answer Quats Phenolics - correct answer Are intermediate-to low-level disinfectants containing phenol (carbolic acid) which has a long history of distinction and use How do phenols kill (mode of action)? - correct answer Penetrates cell, wall, and precipitates cell protein What concentration of isopropyl alcohol possesses the most effective disinfecting properties when applied to inaminate objects in U.S. hospitals? - correct answer 70% Mode of action for ethyl or isopropyl alcohol ( how it kills)? - correct answer Denatures (changes the structure of) proteins Mode of action for chlorine? - correct answer Inhibits some key enzymatic reactions within the cell, denatures protein, and inactivates nucleic acids Mode of action for Buffered Iodine? - correct answer Poison cells of nucleic acids; quickly penetrates the cell walls of microorganisms Iodophors - correct answer Are reactive member of the halogen family, Inventory turnover rate - correct answer The number of times per year that inventory is purchased, consumed, and replaced. Inventory service level - correct answer The percentage of items filled (available) when an order is placed. Inventory stock out rate - correct answer The percentage of items that cannot be filled (are not available) when an order is placed. Superheat - correct answer Dry steam; the condition of steam when its temperature is too high relative to its pressure in a steam table. Computer equipment type of fire - correct answer C Energized electrical equipment type of fire - correct answer C Flammable liquid type of fire - correct answer B Paper, wood, cloth, plastic type of fire - correct answer A Total acquisition Cost - correct answer All costs incurred by the facility to purchase a specific supply or equipment item from the point of authorization through its disposal. Psychrophiles - correct answer Cold-loving bacteria whose optimum temperature for growth is 59*F - 68*F (15*C -20* or below. Thermophiles - correct answer Bacteria which grow best at a temperature of 122*F - 158*F (50*C - 70*C) Mesophiles - correct answer Bacteria that grow best at moderate temperatures: 68*F - 113*F (20*C - 45*C) A unit that measures visible light. - correct answer Angstrom State of active growth of microorganisms ( as opposed to the resting or spore stages.) - correct answer Vegetative stage Solutions that are administered to patients intravenously. - correct answer Parenteral solutions Solutions that are normally used for irrigating, topical application, and surgical use that are given orally or by inhalation. - correct answer External solutions The continual movement of water from the atmosphere to the earth and back to the atmosphere. - correct answer Hydrologic cycle A water treatment process in which dissolved impurities are separated from water by forcing the water through a molecular filter membrane. - correct answer Reverse osmosis The maximum density recommended for linen pack is? - correct answer 7.2 pounds per cubic foot of pack What would be the recommended exposure time for a Dry Heat Sterilization load that was run at an exposure temperature of 320 degrees F, (160 degrees C)? - correct answer 2 hours Pumps heated or cooled water through a coiled pad to therapeutically raise or lower body temperature. - correct answer Hypothermia Unit Mechanically controls the administration of intravenous (IV) therapy fluids. - correct answer Infusion Pump Patient-Controlled Analgesia. Provides for automatic (self) administration of pain medication. - correct answer PCA Pump APIC - correct answer The Association for Professionals in Infection Control and Epidemiology Procedures used by equipment manufacturers to obtain, record, and interpret test results required to establish that a process consistently produces a sterile product. - correct answer Validation Procedures used by healthcare facilities to confirm that the validation undertaken by the equipment manufacturer is applicable to the specific setting. - correct answer Verification ANSI - correct answer (American National Standards Institute) Responsible for enhancing the quality of life by promoting standards and ensuring integrity. ISO - correct answer (International Standards Organization) Represents over 156 countries What is the correct temperature and humidity for the sterile storage area? - correct answer 75*F(24*C); less than 70% humidity What is the correct temperature and humidity in the decontamination area? - correct answer 60*- 65*F(16*-18*C); 30-60% humidity What is the correct temperature and humidity in the packaging and processing area? - correct answer 68*- 73*F(20*-23*C); 30-60% humidity List the water temperature for enzymatic detergents. - correct answer 109*- 140*F Describe simultaneous wrapping. - correct answer Using two layers of wrap at the same time to wrap an item at one time. Which component of the sterilizer is responsible for heating up the chamber? - correct answer Jacket List the four phases of the steam sterilization cycle. - correct answer Exhaust, conditioning, exposing(sterilizing), drying. List the parameters for effective steam sterilization. - correct answer Time, temperature, steam under pressure. How many spores are in a biological indicator? - correct answer one million Sterilization tape is an example of a class ______ indicator? - correct answer 1 List three parameters for ethylene oxide sterilization. - correct answer Temperature, humidity, exposure time, gas concentration, pressure. Identify the organism used to biologically test dry heat. - correct answer Bacillus atrophaeus What is another name for a PAR-level distribution system? - correct answer Fixed-inventory system What is another name for a stockless distribution system? - correct answer Just-In-Time (JIT) A distribution system designed specifically for dialysis patients? - correct answer Specialty cart Which type of distribution system uses two identical carts that can be distributed to different units? - correct answer Exchange cart system In what type of distribution system is the patient directly charged? - correct answer Demand Which of the following tracking methods provides real time information? - correct answer RFID The method of wrapping that creates a package within a package is called? - correct answer Sequential 400 series stainless steel is also called? - correct answer Martensitic Cellulosic material (paper, cotton and linen) cannot be processed in a/an? - correct answer hydrogen peroxide gas plasma sterilizer In an ABC Inventory Control system, " A items represent? - correct answer the smallest number of items and largest dollar value A system that keeps track of all incoming and outgoing supplies so that quantities of supplies in storage are known at all times, is? - correct answer perpetual inventory system The act of withdrawing supplies from storage for transfer to areas where they will be used? - correct answer Issue The difference between the amount of a supply that should be available (from records) and the amount that is available (from physical count) when a perpetual inventory system is used? - correct answer Varience The most effective type of dry heat sterilizer is? - correct answer mechanical convection sterilizer Biological testing should be performed in an ethylene oxide sterilizer? - correct answer in every load What percentage of microorganisms are harmful to humans because they can grow at approximately human temperature? - correct answer 1% What type of hepatitis virus is important in food-borne illness? - correct answer A Phenolics are often used to disinfect? - correct answer noncritical items Which of the following should not be processed in an ultrasonic cleaner? - correct answer plastic instruments Items requiring manual cleaning should be? - correct answer Cleaned per manufactures instructions The distribution system used to provide specific products for individual surgical procedures is a? - correct answer case cart system What is the ph level for neutral water? - correct answer 7 What is the ph level for purified water? - correct answer 6.5 - 7.5 How many parts per million (ppm) are acceptable for a person to be exposed to EtO in a TWA? - correct answer 1 ppm and 0.5 ppm action level (AL) of EtO/8hr TWA The process by which Ethylene Oxide destroys microorganisms, resulting in the inability of the cell to normally metabolize, reproduce, or both. - correct answer Alkylation The act or process of-------: the chemical breakdown of nutrients. - correct answer Oxidation Convert fahrenheit to celsius - correct answer subtract 32 and multiply by .5556 Convert celsius to farenheit - correct answer multiply by 1.8 then add 32