CRCST Exam Prep Practice Exercise 1 with correct answers

CRCST Exam Prep Practice Exercise 1 3 minutes - correct answer Dynamic air removal: exposure time for any wrapped item at 275 degrees. 97%-100% - correct answer What is the correct percentage of relative humidity for steam sterilization? Conditioning, exposure, exhaust, drying - correct answer What are the 4 cycles of steam sterilization? Ethylene oxide - correct answer Which low-temp sterilization method requires monitoring? By a process called alkylation. - correct answer How does ethylene oxide kill microbes? By a process called oxidation. - correct answer How do ozone and hydrogen peroxide kill microbes? Concentration: 450-1200 mg/l Temp: 98-145 degrees F Exposure time: 1-6 hours Humidity: 40-80% Aeration time: 8-12 hours at 122-140 degrees F - correct answer Discuss sterilization parameters for ethylene oxide (concentration, temp, exposure time, humidity, aeration time) Bacillus atrophaeus - correct answer What is the microorganism of choice for ethylene oxide sterilization? Vacuum, injection, diffusion, plasma, vent - correct answer What are the five phases of gas plasma sterilization? Cellulose, muslin wraps - correct answer Which materials are not recommended for use in hydrogen peroxide sterilization method She? Geobacillus stearothermophilus - correct answer What is the microorganism of choice for hydrogen peroxide gas plasma sterilization? Time: 24-75 minutes Temp: less than 131 degrees F Concentration: 59-95% Vacuum level: auto controlled Plasma: auto controlled - correct answer Discuss hydrogen peroxide gas plasma sterilization parameters (time, temp, concentration, vacuum level, plasma) Conditioning, leak test, sterilization, aeration - correct answer What are the 4 cycles for vaporized hydrogen peroxide systems? Temp: less than 122 degrees F Concentration: 59% Time: 28-55 minutes Other: preset cycles - correct answer Discuss vaporized hydrogen peroxide sterilization parameters (temp, concentration, time, other). Geobacillus stearothermophilus - correct answer What is the microorganism of choice for vaporized hydrogen peroxide (VHP)? Temp: 87.4-97 degrees F Concentration: 59% Humidity: 85-100% Time: 4.5 hours - correct answer Discuss ozone sterilization parameters (temp, concentration, humidity, time). Geobacillus stearothermophilus - correct answer What is the microorganism of choice for OzOne sterilization? Cellulose, linens, liquids, powders - correct answer What materials cannot be processed in VHP or gas plasma sterilizers? Rubber, latex, textiles, copper, brass, bronze, zinc, nickel. - correct answer What materials cannot be processed in an ozone sterilizer? 30-60% - correct answer What are the parameters for relative humidity in the decontamination area? 60-65 degrees F - correct answer What should the temperature range be in the decontamination are? 80-110 degrees F - correct answer What is the temperature range for water in the decontamination area? No less than 10 per hour. - correct answer How many air exchanges are required in the decontamination area? 140 degrees F - correct answer This temperature should not be exceeded when using enzymatic cleaners. 6-8 - correct answer What is the pH of neutral detergents? Quaternary ammonium, alcohols, phenolic, chlorines, iodophors - correct answer Name the most common low-level or intermediate-level disinfectants. Non-sporicidal, must remain wet for 6-10 minutes - correct answer Discuss characteristics of quats (is or is not sporicidal, wet contact time) Non-sporicidal, 5 minute wet-contact time - correct answer Discuss characteristics of alcohols (is or is not sporicidal, wet contact time) Member of the halogen family, Non-sporicidal, 2.5 minute wet contact time, 1:10 dilution of 5.25% suggested for use by the CDC - correct answer Discuss characteristics of chlorine (What family is it in, is or is not sporicidal, wet contact time, dilution suggested) Alkylation - correct answer Process by which gluteraldehyde kills microbes Glutaraldehyde, orthodox-pthalaldehyde, hydrogen peroxide, paracetic acid - correct answer Name the high level disinfectants Non-sporicidal - correct answer Discuss characteristics of phenolics Kills bacteria within 2 minutes for sterilization, soak time is 6-10 hours, it becomes unstable after 14 days - correct answer Discuss characteristics of glutaraldehyde Has a 14 day reuse life, can be discarded down the drain, does not have a sterilants label claim - correct answer Discuss characteristics of OPA [orthopthalaldehyde] Can be used as a sterilant at the right concentrations, kills Bacteria and viruses - correct answer Discuss characteristics of hydrogen peroxide as an HLD. Broad spectrum HLD, may be used as sterilant in the appropriate AER, achieves HLD in 5 minutes - correct answer Discuss characteristics of paracetic acid 150-170 degrees F for 30 minutes - correct answer What is the appropriate time/temperature range for a pasteurizer? 68-73 degrees F - correct answer What is the appropriate temperature for the assembly area? 30-60% - correct answer What is the appropriate humidity for the assembly area? Designed to react to all critical parameters and to be equivalent to or exceed performance requirements, over a specified range of sterilization cycles - correct answer Class 5 Integrator indicator Also called verification indicators or cycle-specific indicators, designed to react to all parameters of a specific sterilization cycle. - correct answer Class 6 Integrator Indicator Paper, polyolefin plastic, nonwoven - correct answer Most common disposable packaging materials in use Also called type 140 cotton, barrier cloth, calico. Made of 100% cotton with 140 thread count per square inch. - correct answer What are the other names for MUSLIN? what is it made of? and what is its thread count per square inch? Member of halogen family, 2 minute wet contact time, most widely used is providence-iodine - correct answer Discuss characteristics of iodophores (family it's in, wet contact time, most widely used form of iodophores) Not recommended as a packaging material because of its tight weave. - correct answer Is CANVAS recommended as a packaging material? and if not, why? No higher than 75 degrees F - correct answer Temperature of sterile storage area. Size limited to 12x12x20, no more than 12 pounds, density cannot exceed 7.2 pounds per cubic foot. - correct answer describe the size limit for LINEN PACKS, allowed amount of weight, and how dense they are allowed to be. Less than 70% - correct answer Humidity of sterile storage area At least 2 inches - correct answer How far should sterile items be stored from exterior walls? 200-500 lux - correct answer What is the recommended lighting for sterile storage area? 8-10 inches - correct answer How far should bottoms sterile storage shelf be from the ground? At least 18 inches - correct answer How far away from the ceiling should sterile items be stored? Ensures that oldest items are used first. Place newest item on the left and oldest on the right. Pull items from the right. - correct answer Describe FIFO (first in-first out) 4 - correct answer Number of air exchanges required in the sterile storage area. commercially-prepared process challenge devices that should be used at least weekly, but preferably on a daily basis. - correct answer Gravity and dynamic air removal sterilization methods have what to test their efficiency? How often should these devices be used? IUSS, tabletop steam sterilizers, EtO, hydrogen peroxide, and ozone - correct answer BIs are the acceptable means for providing quality assurance monitoring for these sterilization methods. Leak test - correct answer This test should be performed at least weekly in an empty sterilization chamber. at least weekly in an empty sterilization chamber - correct answer How often should the leak test be performed and in what kind of sterilization chamber? Six sigma - correct answer A quality assurance process that focuses on developing and delivering near-perfect products and services,strives to eliminate variations, focuses on process improvement. Two methods used are DMADV and DMAIC. Lean - correct answer A quality process that focuses on eliminating waste in the production of products. Define, measure, analyze, design, verify the process that is used to develop new processes. - correct answer What does DMADV stand for? Define, measure, analyze, improve, control procedure to monitor and improve existing processes. - correct answer What does DMAIC stand for? Magnet status - correct answer An award given by the American nurses credentialing center to hospitals that satisfy factors that measure the strength and quality of nursing care. ISO900 - correct answer An international standard used by participating organizations to help ensure that quality services and products are consistently delivered. The concept of measuring the current output of a process or Procedure and then modifying it to increase the output, increase efficiency, and/or increase effectiveness. - correct answer Total quality improvement (TQI) Standardized survey tool that measures the patient's perception of their experience during their hospital stay. - correct answer define HCAHPS? A scientific approach that applies statistical methods to improve work processes. - correct answer Continuous quality improvement (CQI) Failure mode and effect analysis (FMEA) - correct answer A process designed to predict the adverse outcomes of various human and machine failures to prevent future adverse outcomes. Root cause analysis (RCA) - correct answer A process that "looks backward" at an event to help prevent its future reoccurrence. Quality assurance - correct answer A comprehensive and measured effort to provide total quality. Also a technical, statistical sampling method that measures production quality. Processes - correct answer A series of work activities which produce a product or service. Total quality management (TQM) - correct answer A quality management approach based on participation of all members aimed at long-term success through customer satisfaction and benefits to all members of the organization and society Purchase, store, use, discard - correct answer Discuss the consumable inventory life cycle. Inventory - correct answer Reusable equipment and consumable items used to provide healthcare services for patients. Reusable inventory - correct answer Relatively inexpensive assets, such as medical devices and sterilization containers, that can be reused as healthcare services are provided to patients.