front 1 1-The amount of pressure necessary in a steam sterilizer set at 250 is: (A) 15-17 Lb (B) 20-22 LB (C) 22-25 lb (D) 25-27 lb | back 1 (A) |
front 2 2. Positive assurance that sterilization conditions have been achieved can only be obtained through (A) biological control test (B) heat-sensitive tape (C) color change monitor (D) mechanical indicator | back 2 (A) |
front 3 3. -A wrapped tray of instruments is sterilized in a gravity displacement sterilizer at 250F for: (A) 10 minutes (B) 15 minutes (C) 30 minutes (D) 40 minutes | back 3 (C) |
front 4 4-The minimum exposure time for unwrapped instruments in a flash sterilizer that is set at 270F (132 degrees * C) is: (A) 2 minutes (B) 3 minutes (C) 5 minutes (D) 7 minutes | back 4 (B) |
front 5 5-When steam is used to sterilize a rubber tubing or catheter (A) the lumen must be dried thoroughly before the process begins (B) a rubber band may be placed around it so it does not unwind (C) it should be fan-folded before wrapping (D) a residual of distilled water should be left inside the lumen | back 5 (D) |
front 6 6-to be sterilized effectively, a linen pack must not weigh more than : (A) 12 (B) 14 (C) 16 lb (D) 18 lb | back 6 (A) |
front 7 7- Gravity displacement utilizes destroys microorganisms (A) gas (B) radiation (C) gamma rays (D) steam | back 7 (D) |
front 8 8-The process called cavitation occurs in the (A) moist heat sterilizer (B) ultrasonic cleaner (C) high-speed pressure sterilizer (D) washer-sterilizer | back 8 (B) |
front 9 9-All of the following statements regarding instrument sets are true EXCEPT (A) instruments must be placed in perforated trays (B) heavy instruments are placed on the bottom (C) all instruments must be closed (D) all detachable parts must be disassembled | back 9 (C) |
front 10 10-All of the following statements regarding steam sterilization are true EXCEPT: (A) flat packages are placed on the shelf on edge. (B) small packages placed one on top of the other, are crisscrossed (C) basins are placed on their sides (D) solutions may be autoclaved along with other items as long as they are on a shelf alone | back 10 (D) |
front 11 11-Wrapped basin sets may be sterilized by steam under pressure at 250 degrees * F for a minimum of: (A) 5 minutes (B) 10 minutes (C) 15 minutes (D) 20 minutes | back 11 (D) |
front 12 12-Which of the following statements regarding the sterilization of basin sets is TRUE? (A) Basins must be separated by a porous material if they are nested (B) Sponges and linen may be packaged inside the basin to be sterilized (C) Basins are placed flat in the autoclave (D) Basins must always be placed on the top shelf of the autoclave in a combined load | back 12 (A) |
front 13 13--Why would gas sterilization be chosen over steam sterilization? (A) It is less expensive (B) It is less damaging to items (C) It is faster (D) It is more effective | back 13 (B) |
front 14 14-The chemical agent used in gas sterilization is (A) ethylene glycol (B) ethacrynate sodium (C) ethyl chloride (D) ethylene oxide | back 14 (D) |
front 15 15-What chemical system uses peracetic acid as the sterilant ? (A) Ozone gas sterilization (B) STERIS (C) Sterrad (D) Vapor phase sterilizer | back 15 (B) |
front 16 16-The lumen of a tubing undergoing ethylene oxide (EO) sterilization is: (A) well lubricated (B) dried thoroughly (C) prepared with a residual of distilled water (D) prepared with a NaCl flush | back 16 (B) |
front 17 17--The commercial name for glutaraldehyde is : (A) peracetic acid (B) phenol (C) Quats (D) Cidex | back 17 (D) |
front 18 18- A 30 - minute single-use sterilization system useful for endoscopes is : (A) STERIS (B) ETO (C) steam under pressure (D) cold sterilization | back 18 (A) |
front 19 19-Which of the following is essential when using a shelf of the autoclave in a combined load activated glutaraldehyde for sterilization ? (A) Items must be rinsed thoroughly in ster ile water before use (B) The solution must be heated in order to be effective (C) The items must be thoroughly moistened before placement in solution (D) The item must be air dried before use | back 19 (A) |
front 20 20-What is the shelf life of Cidex (A) 14 days (B) 7days (C) 1 month (D) Indefinite | back 20 (A) |
front 21 21-In which procedure would the use of a high-level disinfectant be acceptable instrument preparation (A) Suction lipectomy (B) Tracheotomy (C) Cystoscopy (D) Mediastinoscopy | back 21 (C) |
front 22 22-In a high-speed flash sterilizer, unwrapped instruments are exposed for a minimum of (A) minute (B) 3 minutes (C) minutes (D) 10 minutes | back 22 (B) |
front 23 23-To kill spores, an item must be immersed in a 2\% aqueous solution of glutaraldehyde for: ( (A) 20 minutes (B) 2 hours (C) 10 hours (D) 24 hour | back 23 (C) |
front 24 24-When placing tubing in an activated glutaral aldehyde solution, one should: (A) use a shallow container (B) be certain that the interior of the tubing is completely filled (C) moisten it thoroughly before submersion (D) Both B and C | back 24 (B) |
front 25 25-What is the role of moisture in EO sterilization? (A) The items will dry out during the process if no humidity is added (B) The sterilizer will deteriorate from gas over a period of time if no moisture is added (C) Dried spores are resistant to the gas, so they must be hydrated (D) Moisture is not an essential element in gas sterilization | back 25 (C) |
front 26 26-Slow exhaust " in a gravity displacement steam sterilizer is used for (A) plastics (B) solutions (C) rubber (D) drape packs | back 26 (B) |
front 27 27-What is the function of an aerator in EO sterilization? (A) It is used to aerate items before sterilization (B) It is a separate unit used to decrease the aeration time (C) It is the last cycle in the EO sterilizer which helps exhaust the gas and add air (D) It adds air to the cycle, which is essential for obtaining item sterility | back 27 (B) |
front 28 28-Ethylene oxide destroys cells by: ( A) interfering with the normal metabolism of the protein and reproductive processes (B) coagulating cell protein (C) converting ions to thermal and chemical energy causing cell death (D) shrinking the cell | back 28 (A) |
front 29 29-Activated glutaraldehyde is used to disinfect endoscopes for: (A) 5 minutes (B) 10 minutes (C) 20 minutes (D) 60 minutes | back 29 (C) |
front 30 30-When using a high - level disinfectant, always: (A) submerge items while wet (B) rinse items with sterile distilled water before using (C) soak items in saline before using (D) add hot diluent to activated agent | back 30 (B) |
front 31 31-The chemical sterilant used in the STERIS method of sterilizing is (A) formaldehyde (B) Cidex (C) ethylene oxide (D) peracetic acid | back 31 (D) |
front 32 32-How should basins be positioned in the autoclave for sterilization? (A) Stacked on top of each other (B) On their sides (C) Upside down (D) Does not matter | back 32 (B) |
front 33 33- Gravity displacement, steam sterilizers operate on the principle that : (A) air is heavier than steam (B) air and steam have equal weight (C) steam is heavier than air (D) water is heavier than air | back 33 (A) |
front 34 34-The process of terminal decontamination fol lows every surgical case. Decontamination of the walls consists of (A) cleaning all walls up to 3 ft (B) cleaning all walls up to 1 ft (C) spot clean where soiled (D) always clean with alcohol | back 34 (C) |
front 35 35-Which of the following kills bacterial spore (A) Sterilant (B) Germicide (C) Antiseptic (D) Fungicide | back 35 (A) |
front 36 36- Instrumentation and equipment are processed according to their level of risk. This system is known as: (A) evidence-based practice (B) the Spaulding method (C) Reprocessing (D) Central monitoring | back 36 (B) |
front 37 37--According to the Spaulding, what risk to the STERILE body tissue including the vascular system (A) Critical (B) Semi critical (C) Noncritical (D) Intermediately critical | back 37 (A) |
front 38 38-What method of sterilization is used on that cannot tolerate heat, moisture, and the presence of sterilization ? (A) Gravity displacement (B) ETO (C) Hydrogen peroxide (D) Cidex | back 38 (B) |
front 39 39- Gluteraldehyde is a high level disinfectant that is , a sporicidal , a bacteriocidal , and a virocidal at 2 % concentration for----------- it is also a tuberculocidal (A) 10 minutes (B) 15 minutes (C) 20 minutes (D) 40 minutes. | back 39 (C) |
front 40 40-Chemical monitors are placed inside and side of all packs to This shows : (A) the item is sterile (B) proper packaging is achieved (C) the parameters such as heat and pressure have been reached (D) the proper time has been | back 40 (C) |
front 41 41-To achieve 270 F, the required pressure is . (A) 15 psi (B) 20 psi (C) 27 psi (D) 40 psi | back 41 (C) |
front 42 42-Why is ethylene oxide diluted with an inert gas? (A) It increases its effective sterilization (B) It adds convenience and speed (C) It adds humidity (D) It helps with aeration | back 42 (A) |
front 43 43- Bioburden refers to: (A) the degree of microbial contamination (B) a hospital-acquired infection (C) a chemical agent (D) high- level disinfectant | back 43 (A) |
front 44 44- Sterility was previously measured by time but is now considered invalid. The principle now used is : (A) carefully checking sterile indicators (B) event-related sterility (C) terminal sterilization (D) Both B and C | back 44 (D) |
front 45 45. The following statements regarding wrapping materials are true EXCEPT : (A) Disposable nonwoven wrappers are intended for one use only (B) You can use two 140 thread counts per square inch (C) You can use one 280 thread count per square inch (D) Peel pouches can be used on all instruments including large heavy instruments and micro instruments | back 45 (D) |
front 46 46-Gastrointestinal endoscopes are characterized under the Spaulding sterilization sys tem (A) critical (B) noncritical (C) semicritical (D) scopes are not considered in the Spauld ing system | back 46 (C) |
front 47 47-All are environmental disinfectants used for low-level disinfection and terminal decontamination EXCEPT (A) glutaraldehyde (B) hypochlorite (C) quaternary ammonium compound (D) alcohol | back 47 (A) |
front 48 48- Personal protective equipment (PPE ) includes all of the following EXCEPT (A) protective eyewear (B) facemask (C) surgical and or patient care gloves (D) full protective body suit or gown | back 48 (C) |
front 49 49-Most packaged sterilized equipment from a manufacturer such as sutures, sponges , and disposable drapes are sterilized by means of (A) ETO (B) Cobalt 60 (ionizing radiation) (C) gravity displacement sterilizer (D) quaternary ammonium compounds | back 49 (B) |
front 50 50-Which is not a method of sterilization but is a heating process that destroys microorganisms at a temperature and exposure time but does not alter their chemical makeup : (A) decontamination (B) pasteurization (C) hydrogen peroxide plasma sterilization (D) ETO gas sterilization | back 50 (B) |
front 51 51-What is the immunity referred to when you are exposed to the disease and as a result, you become immune: (A) naturally acquired active immunity (B) artificially acquired active immunity (C) artificially acquired passive immunity (D) naturally acquired passive immunity | back 51 (A) |
front 52 52-An obligatory parasite is: (A) a type of prion (B) a type of microorganism that depends on living tissue to survive (C) a type of microorganism that depends on dead tissue to survive facultative parasite (D) All of the above | back 52 (B) |
front 53 53-The only antibiotic that works on MRSA is: (A) gentamycin (B) amoxicillin (C) tobramycin D) vancomycin | back 53 (D) |
front 54 54-All are true regarding a prion EXCEPT (A) Creutzfeldt Jakob disease (B) they contain DNA /RNA (C) It is neither viral, bacterial, nor fungal (D) When performing surgery on a patient that is infected with a prion , we should use disposable instruments | back 54 (B) |
front 55 55-__________________is, when different organisms exist and benefit from the other. ________________________ is when one organism benefits from the other and neither is harmed. ____________________________ is when one organism benefits from the other and harms the host: 1. Parasitism 2. Mutualism 3. Commensalism (A) 1,2,3 (B) 3, 2, 1 (C) 2, 3, 1 (D) 1, 3, 2 | back 55 (C) |
front 56 56-Bioterrorist agents include all EXCEPT (A) anthrax (B) botulism (C) small pox (D) bubonic plague | back 56 (D) |
front 57 57-New infectious diseases emerging in the United States include : (A) SARS (B) West Nile virus (C) avian influenza (D) All of the above | back 57 (D) |
front 58 58-The chemical name for common household bleach is: (A) sodium hypochlorite (B) quaternary ammonium compounds (C) petroleum products (D) hydrogen peroxide | back 58 (A) |
front 59 59-Personal protective equipment includes all EXCEPT : (A) goggles (B) surgical and/or patient care gloves (C) facemask (D) protective body clothing | back 59 (B) |
front 60 60-Instruments and equipment are processed according to their level of risk. This system is known as : (A ) ETO sterilization (B) event related sterility (C) the Spaulding method (D) instrument cleaning and disinfection | back 60 (C) |
front 61 61-What is the test that is used to check for air trapped in the pre-vacuum sterilizer? (A ) Biological indicator (B) Bowie-Dick test (C) Chemical indicator (D) Pre vacuum test | back 61 (B) |
front 62 62-The bacterial spore used in the biological indicator for steam sterilization is Geobacillus stearothermophilus when killed within 60 minutes, the enzyme in the biological indicator will turn what color (A) fluorescent yellow (B) red (C) blue (D) no specific color | back 62 (A) |
front 63 63- All are true of dry heat sterilization EXCEPT (A) the indicator used for dry heat ovens are B. atrophaeus (B) it is used only in an emergency in the operating room (C) sterilization occurs in mechanical con vection ovens (D) sterilization occurs in gravity convection | back 63 (B) |
front 64 64- Hydrogen peroxide plasma sterilization uti lizes : (A) a cloud or glow of pink plasma sterilization utilizes : (B) a chamber much like microwaves (C) using a hydrogen peroxide solution (D) All of the above | back 64 (A) |
front 65 65-In a gravity displacement sterilizer, steam enters the chamber through : (A) bottom (B) bottom, back (C) top, back (D) top front | back 65 (D) |
front 66 66-ETO is mixed with carbon dioxide to: (A) increase antimicrobial effect (B) reduce flammability of ETO (C) reduce temperature requirement (D) increase microbial killing ratE | back 66 (B) |
front 67 67- How long should the ETO biological indicator be incubated before the reading is recorded ? (A) 24 hours (B) 48 hours (C) 12 hour (D) 3 hours | back 67 (B) |
front 68 68- For ETO sterilization , how long must instru ments remain in the aerator being operated at 140 degrees * F ( A) 8 hours (B) 6 hours (C) 4 hours (D) 2 hours | back 68 (A) |
front 69 69-What spore is used to test steam under pressure ( steam sterilizer )? (A) Clostridium perfringens (B) Bacillus stearothermophilus (C) Treponema pallidum (D) Staphylococcus aureus | back 69 (B) |