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CRCST Exam Q&A: Mastering Sterile Processing Techniques, Exams of Public Health

A series of questions and answers related to sterilization and disinfection practices, primarily focusing on central service departments in healthcare facilities. It covers various aspects of sterilization methods, equipment maintenance, infection control, and regulatory standards. The content is structured as a quiz, providing a quick review of key concepts and best practices in sterile processing. It is useful for technicians and healthcare professionals involved in sterile processing, offering a concise overview of essential knowledge in the field. Questions on sterilization techniques, equipment maintenance, and safety protocols, making it a valuable resource for quick reference and exam preparation. It also touches on the importance of quality control and adherence to standards in maintaining a sterile environment.

Typology: Exams

2024/2025

Available from 05/21/2025

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IAHCSMM CRCST EXAM QUESTIONS & ANSWERS
100% CORRECT
1. The physical method by which an ultrasonic units clean is called
ANS Cavita- tion
2. Equipment should be inspected for obvious hazards such as cracked or frayed
electrical cords
ANS
whenever the equipment is cleaned
3. Impregnated Gauze Strips may be sterilized using
ANS
dry heat sterilization
4. Powered surgical instruments should be cleaned using a mechanical
cleaning process.
ANS False. They should all be cleaned manually.
5. Agency responsible for the MedWatch program
ANS FDA food and drug admin- istration
6. Phenolics are classified as
ANS intermediate to low level disinfectants
7. To prevent coagulation of proteins, water temperature should be
ANS Below 43 C (110 F)
8. Secondary containers of chemicals
ANS must be labeled with a copy of the original manufacturer's label or a generic label
that identifies hazard warnings and directions
9. These carry blood away from the heart
ANS arteries
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IAHCSMM CRCST EXAM QUESTIONS & ANSWERS

100% CORRECT

1. The physical method by which an ultrasonic units clean is called

ANS Cavita- tion

2. Equipment should be inspected for obvious hazards such as cracked or frayed

electrical cords ANS whenever the equipment is cleaned

3. Impregnated Gauze Strips may be sterilized using

ANS

dry heat sterilization

4. Powered surgical instruments should be cleaned using a mechanical

cleaning process. ANS False. They should all be cleaned manually.

5. Agency responsible for the MedWatch program

ANS FDA food and drug admin- istration

6. Phenolics are classified as

ANS intermediate to low level disinfectants

7. To prevent coagulation of proteins, water temperature should be

ANS Below 43 C (110 F)

8. Secondary containers of chemicals

ANS must be labeled with a copy of the original manufacturer's label or a generic label that identifies hazard warnings and directions

9. These carry blood away from the heart

ANS arteries

10. The percentage of hospital patients that develop a healthcare facility-as-

sociated infection. ANS Approximately 10%

11. Spiral shaped bacteria are classified as

ANS spirillum

12. The two most common techniques of flat wrap packaging are

ANS Square-fold and envelope-fold

13. Third party reprocessors are regulated by the FDA

ANS True

14. In central service, the concept of "one-way flow of materials" refers to the

movement of products ANS From soiled areas to clean processing areas within central service

15. Horizontal work surfaces in the decontamination area should be cleaned and

disinfected ANS At the beginning and end of each shift.

16. A material that removes electrons from another substance is Called

ANS an oxidizing agent

17. Pre-Vacuum Steam Sterilizer & Steam Flush Pressure-Pulse (SFPP)

ANS Use an active air removal system

18. These chemicals are used on animate (living tissue) to slow the growth of

microorganisms ANS antiseptics

ANS

allow air removal, steam penetration and facilitate drying

30. Exchange cart system

ANS The inventory system that uses two identical carts to facilitate Supply replenishment is called the.

31. The largest operating channel of an endoscope is the channel?

ANS In- strument

32. Solution used to remove the white, hard-to-remove substance that some-

times appears on sinks and equipment ANS descaler

33. Pexy is

ANS Surgical fixation

34. Bacillus is

ANS rod shaped bacteria

35. A molecular reaction that creates an uncontrolled release of energy is

called ANS polymerization

36. A succession of progressively more responsible professional positions that

serves as the foundation of a professional development plan ANS career ladder

37. A unit of measure that measures the amount of resistance to an electrical

current. ANS Ohm

38. A voluntary international organization dedicated to the prevention and

control of infections and related outcomes. ANS APIC

39. Allows for visual inspection of the upper digestive tract.

ANS gastroscope

40. An iodophor is a(n)

ANS Bufferd Iodine

41. Autoclave sterilizer is a class of device

ANS Class |

42. Automatic washers clean using a spray-force action called impingement.-

ANS True

43. Behavior relating to what is right and wrong relative to the standards of

conduct for your profession are called ANS ethical behavior

44. are often pathogenic to humans because they grow best at body

temperature ANS mesophiles

45. Blue stain on a scope, what is the reason?

ANS improper cleaning

46. Bluish or rainbow type stains are caused by in water.

ANS iron and silicates

47. Body balance is regulated by fluid in the

ANS

inner ear

48. Bowie dick tests should be run in

58. Typically 1 min of drying time programmed into flash cycles removes

steam from chamber but doesn't dry device completely ANS Drying phase of steam sterilization

59. What would be the recommended exposure time for a dry heat steriliza- tion

load that was run at an exposure temperature of 320 degrees •F ANS 2 hours

60. The term "super heated steam" means

ANS Dry steam

61. Some plastics including formulations of spun bonded polyolefin are

intended for use solely in these sterilization processes ANS low temperature

62. The part of the digestive system where the greatest absorption of nutri- ents

into body cells takes place ANS small intestines

63. Water that is turbid is

ANS

cloudy

64. Softened water

ANS decreases the likelihood of mineral scale deposits

65. A liquid oxidizing agent that is an effective biocide at low temperatures. It is

a used in a sterilizaiton system that processes immersible instruments for immediate use ANS Paracetic Acid (PA)

66. Award given by the American nurses credentialing center to hospitals that

satisfy factors that measure the strength and quality of nursing care viewed as one of the highest achievement a hospital can obtain

ANS Magnet status

67. Modern powered surgical instruments are immersive.

True or False ANS False

68. The term "excise" means

ANS To cut out

69. Which of the following tracking methods provides real time information?-

ANS RFID

70. The spore used in the testing of steam sterilization is

ANS Geobacillus stearothermophilus

71. In a sterilization load containing 2 small basins, the chemicals indicators will

be positioned. ANS On the top of the basins

72. This unit pumps heated or cooled water through a coiled pad to therapeu-

tically raise or lower the body temperature ANS hypothermia unit

73. Which of the following is the most popular title for the central service

department head ANS director

74. Implantable devices

ANS should not be flash sterilized

86. The moisture content of saturated steam should posses a relative humid- ity

of ANS 100%

87. Information regarding cleaning processes for endoscopes should be

provided by ANS the instrument manufacturer

88. The FDA classifies sterilization packaging as a

ANS Class ll Medical Device

89. Tests which use live bacterial spores to challenge the efficacy of the

sterilization process and provide a direct measure of lethality are called ANS Bi- ological test

90. The amount of time it takes to kill 90% of the microorganisms present on an

object is called ANS D-value

91. The most efficient type of dry heat sterilizer is

ANS the mechanical convection sterilizer

92. When loading a steam sterilizer, items with solid bottoms should be

ANS

placed on edge

93. Paper/plastic sterilization pouches

ANS

should not be placed inside of wrapped sets or containers

94. Instruments washers sterilizers provide

ANS

95. official inventory

ANS can be counted as an asset on the facility's balance sheet

96. The inventory system that stocks supplies by established levels is called-

ANS Par-level system

97. In this system items are owned by the vendor, but stored at the healthcare

facility ANS consignment

98. If an equipment malfunction causes harm to patients, it should be

ANS re- turned immediately to the biomedical department

99. The requires that the healthcare facility report malfunctions of med-

ical devices that have contributed to patient injury and/or death to the manufacturer and the FDA. ANS

100. Which of the following is NOT a reason for tracking supplies, equipment and

instruments. ANS meet CDC and OSHA requirements

101. Which of the following tracking methods provides real time informa-

tion? ANS radio frequency identification tags (RFID)

102. Point of use computing

112. Which of the following is a system used to treat the final rinse water used

for cleaning? ANS Deionization

113. Purified water should have a ph of

ANS 6.5-7.

114. Endotracheal tubes and anesthesia breathing circuits are examples of

ANS

Semi-critical devices.

115. if a sterilizer has successfully killed all bacterial spores in a biological test

ANS it is called a negative test

116. How frequently should a sterilizers strainer be removed and cleaned

ANS -

daily

117. The transport of flash sterilized items is difficult because

ANS

they have no protective wrapping

118. When processing flexible endoscopes in a liquid chemical sterile pro-

cessing systems should ANS

119. The inventory system that stocks supplies by stablished stock levels is called

ANS

120. International standards to reduce the burden of fire and other hazards-

ANS NFPA (national fire protection association)

121. furthers international cooperation in improving health conditions

ANS who

122. Enhances the global competitiveness and quality of life by promoting

standards and ensuring their integrity ANS ANSI

123. Proposed standards are submitted from members such as AAMI

ANS

124. agency responsible for regulating EO

ANS

125. Recommendations regarding sterilization practices are provided by

AAMI?

ANS

126. "Following Standard Precautions protocols is required by

ANS

ANS OSHA

127. A process by which all forms of microbial life are destroyed.

ANS sterilization

128. Information regarding cleaning processes for endoscopes should be

provided by ANS the instrument manufacturer

129. "The 4 R's"

run, read, record, retain

130. When liquid chemicals are labeled as both a high level disinfectant and a

sterilant, the time required to achieve sterilization is longer than the time required to achieve high level disinfection ANS

cannot be chipped or scratched ANS False

142. The prefix hemi

ANS means half

143. robotic instruments (all of the above)

ANS Do not come apart for cleaning, have mechanical/electrical components in the proximal end of the instrument, and are heavier than standard laparoscopic instruments

144. Healthcare regulations and standards provide consistency of depart-

mental activities by outlining ANS minimal levels of quality and safety

145. All sonic cleaners have a decontamination cycle (T/F)

ANS False

146. Rigid container filter retention plates should be

ANS removed from the con- tainer and lid and cleaned separately

147. The amount of time an item must remain wet with a disinfectant to

achieve disinfection is called ANS Wet contact time

148. Contaminated items may be returned to central service (all of the above)-

ANS During scheduled soiled pick up rounds, by staff from user departments, and in case carts

149. Cleaning brushes

ANS should be decontaminated at least daily

150. steam sterilization is the most commonly used method of sterilization used

in healthcare because ANS Cycles are fast and inexpensive

151. When placing sterile items on the shelf, check

ANS Package integrity, an expiration date and deals and filters to be sure they are intact (all of above).

152. One common cause of a clogged drain screen is

ANS Tape

153. The first sink bay in the decontamination area should be filled with a

neutral detergent or enzyme. ANS True

154. due to the difficulty of cleaning items contaminated with prions (all of the

above) ANS disposable instruments should be used during the case. Heat-sensi- tive items should not be used as they will probably be destroyed during cleaning. And if reusable items are used guidelines suggest disposing of the items contam- inated with high-risk tissue.

155. When loading a steam sterilizer

ANS Basin sets should be placed on edge/tilted, sold containers should be placed so air can get out, there should be visible space between packs (do all of the above)

156. What exposure monitoring is required for all personnel using hydrogen

162. The guidelines of sterile storage are the same for both items sterilized in

house and for items purchased sterile. ANS True

163. Information about a devices compatibility with a specific sterilization

process should be ANS

164. Temperature in the preparation and packaging area should be

ANS Between 68 and 73 degrees Fahrenheit

165. In an automated washer the key source of disinfection is

ANS water temper- ature

166. When assembling instrument trays

ANS Heavier instruments should be placed on the bottom of the tray

167. The steam sterilization process can be affected by the design of the

medical device being sterilized. ANS True

168. Ethylene oxide, hydrogen peroxide and ozone sterilization process must all

be monitored using chemical, physical and biological monitors. ANS True

169. Agency responsible for regulating EO

ANS

170. Tissue, body fat, blood, and other body substances are all examples of

soil. ANS Gross. Pg 125

171. Cebatome

ANS Used to remove cement

172. Sigmoidoscopy

ANS a medical procedure that allows doctors to visually examine the rectum and the lower part of the colon (the sigmoid colon) using a thin, flexible tube with a camera and light. It's used to screen for colorectal cancer, diagnose symptoms like bleeding or pain, and to remove polyps.