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CRST EXAM PRACTICE GUIDE 2025-2026 GRADED A+, Exams of Nursing

CRST EXAM CRST EXAM PRACTICE GUIDE 2025-2026 GRADED A+

Typology: Exams

2024/2025

Available from 06/24/2025

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CRST EXAM PRACTICE GUIDE 2025-2026 GRADED A+
1
/
14
1.
Ventilation system in decontamination area must be
Negative
pressure
2.
Patient care equipment must be processed how of-
ten?
3.
What indicates damage to glass rods in a fiber optic
light cable?
After each use
black
dots
4.
What is ideal for writing count sheets and tray lists? Permanent, nontoxic ink
5.
Where should the chemical indicator be placed in a
wrapped set of instruments?
The
center
of
the
set
6.
For sterilization to occur, steam must
Make direct contact with all
surfaces
7.
When are sterilized packs most likely to become con-
taminated?
Within the first hour of ster-
ilization
8.
EO risk of fire can be minimized by mixing what?
EO with HCFC and CO2
9.
Sterile items protected from the environment have
been proven to remain sterile how long?
Indefinitely
10.
Sterile storage area should be maintained at
Positive
pressure
11.
How many inches from the floor should supplies in
sterile storage be
8
to
10
12.
Another term for par-level distribution system is?
Fixed
13.
Required for an effective case cart system.
Good communication
14.
40%
pf3
pf4
pf5
pf8
pf9
pfa
pfd
pfe

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CRST EXAM PRACTICE GUIDE 2025- 2026 GRADED A+

  1. Ventilation system in decontamination area must be Negative pressure
  2. Patient care equipment must be processed how of- ten?
  3. What indicates damage to glass rods in a fiber optic light cable?

After each use

black dots

  1. What is ideal for writing count sheets and tray lists? Permanent, nontoxic ink
  2. Where should the chemical indicator be placed in a wrapped set of instruments?

The center of the set

  1. (^) For sterilization to occur, steam must Make direct contact with all surfaces
  2. When are sterilized packs most likely to become con- taminated?

Within the first hour of ster- ilization

  1. EO risk of fire can be minimized by mixing what? EO with HCFC and CO
  2. (^) Sterile items protected from the environment have been proven to remain sterile how long?

Indefinitely

  1. Sterile storage area should be maintained at Positive pressure
  2. How many inches from the floor should supplies in sterile storage be

8 to 10

  1. (^) Another term for par-level distribution system is? Fixed
  2. Required for an effective case cart system. Good communication
  3. 40 %

CRST EXAM PRACTICE GUIDE 2025- 2026 GRADED A+

The % represented in terms of inventory of medical and surgical supplies in a facility's operating budget is

  1. Bar-coding of instrument sets is an integral part of: Tracking systems
  2. What type of detergent can be used to remove se- vere stains on stainless steel instruments?
  3. Not removing all air from a package in the steam sterilizer will result in what failure?
  4. The hourly air exchange rate in the sterile storage area should be at least
  5. What class does a chemical indicator responding to two or more critical parameters belong?

Organic acid detergents

poor steam penetration

Class 4

  1. What does the term RACE stand for? rescue, alarm, contain, ex- tinguish
  2. Main role of sterile processing is: provide reliable services to enhance quality of patient care
  3. instruments sets and patient care equipment pro- cessing and distributing must be done accurately and timely so:

patient care is not adversely attected

  1. Ethics is Doing the right thing

  2. Compliance with OSHA is required by law

CRST EXAM PRACTICE GUIDE 2025- 2026 GRADED A+

  1. Smallest most numerous structural units processing cells basic life characteristics are:
  2. An environmental factor not required for the life of a cell is:

cold

  1. The cell's brain is the nucleus
  2. Cell portion that contains DNA nucleus
  3. Complex structures with specialized functions in the organs body are:
  4. Where do red blood develop? Bone marrow
  5. The smallest bones of the body are found in the: middle ear
  6. Bone which supports the tongue and swallowing functions:
  7. Skull, hyoid, vertebral column and thoracic cage are part of skeleton

hyoid bone

axial

  1. Muscles make up % of body 50%
  2. Sternum is located in skeleton axial
  3. Humerus is located in skeleton appendicular
  4. Bones of the lower limbs include: femur, tibia, fibula
  5. Bones of the upper limbs include: humerus, radius, ulna
  6. Muscle cells which lack striations: smooth muscle cells

CRST EXAM PRACTICE GUIDE 2025- 2026 GRADED A+

  1. Connects muscle to bone tendon
  2. Specialized cells responsible for body contractions: muscles
  3. Largest organ of the body is: skin
  4. Which layer of the skin contains nerves and blood supply?

dermis

  1. provides immunity white blood cells
  2. Which gas is removed from body cells? carbon dioxide
  3. Which body system regulates pH? respiratory
  4. Food is transported to the stomach through the esophagus
  5. The term pathogenic means: disease producing
  6. Gram-Positive microorganisms stain what color? blue or purple
  7. Units that microorganisms are measured in: microns
  8. Streptococcus shape is: spherical
  9. Spirochete shape is: spiral
  10. Bacteria reproduce by binary fission
  11. Gram-Negative microorganisms stain what color? red or pink
  12. Cocci shape round
  13. Microorganism that can slow down its metabolism and become dormant is:

Gram-Positive Bacillus - Blue or Purple in color

  1. Healthcare infection is generally termed nosocomial
  2. Healthcare-acquired infections kill how many people 90, annually
  3. The principal living reservoir of human disease comes from:

human body

  1. Gastrointestinal disease is usually a result of water contaminated by feces of humans and other ani- mals
  2. The principal route of nosocomial infections is: direct contact
  3. An inanimate object involved in spreading infection is called

fomite

  1. is not a disease spread by droplets Measles
  2. discharges pathogens that cause TB, whooping Respiratory tract cough, pneumonia, measles, mumps and smallpox.
  3. Living things that cause disease are called vectors
  4. Most common portal of exit in disease transmission: respiratory tract
  5. Portal of entry caused by a needle stick is: Parenteral Tissue
  6. causes lyme disease Vector
  7. Best way to prevent infection Wash hands
  8. The MINIMUM time needed for effective hand wash- 15 seconds ing is:
  1. When washing hands, turn off the water with: a disposable towel
  2. regulates bloodborne pathogen exposure. OSHA
  3. Most effective alcohol hand sanitizers contain % alcohol
  1. When hands are visually soiled are not appropri- Waterless hand antiseptics ate for remedying the situation.
  2. All blood and other potentially infectious materials should be:
  3. Any time an employee is exposed to blood or body fluids a must be performed.

Handled as if they were in- fectious

confidential medical evalua- tion

  1. Cleaning according to AAMI is: Removal of contamination from an item to the extent necessary for further pro- cessing of for the intended use
  2. The use of physical or chemical means to inactivate bloodborne pathogens from a surface is accord- ing to OSHA

decontamination

  1. The first step in decontamination process: Manual and/or automated, mechanical cleaning
  2. Microorganisms on contaminated items are called bioburden
  3. refers to disease-producing microorganisms. pathogen
  1. Prior to processing instruments in an ultrasonic cleaner, should be removed

gross soil

  1. Power equipment should be cleaned in what way? As specified by the manufac- turer
  2. Fiberoptic light cables should be cleaned with soft cloth and detergent
  3. Prior to manual cleaning of a flexible endoscope, what must be done?
  4. Instruments and devices received from another fa- cility should be:

leak testing

Completely reprocessed

  1. Material which can be used as a simple test to check aluminum foil the functioning of the ultrasonic cleaner is?
  2. The TOSL line of products verifies the effectiveness of
  3. Process that kills most microorganisms but not spores is:

mechanical washers

High-level disinfection

  1. Spaulding's classfication of medical devices indicates high level that a semi-critical item requires which form of dis- infection?
  2. Which level of disinfection destroys HIV? low level
  3. A disinfectants effectiveness to perform correctly de- Whether it remains wet for pends on?
  4. Class of disinfectants to which sodium hypochlorite belongs:

the stated amount of time

Halogens

  1. should never be used an as environmental dis- infection.
  2. Chemical which has regulations requiring employ- ees to be routinely monitored.
  3. Noted on an improperly cleaned instrument disin- fected in ortho-phthaldehyde.
  4. Not necessarily recorded on high level disinfection record

Glutaraldehyde

Glutaraldehyde

blue stain

Whether the item was com- pletely dry

  1. patient-cooling machine. Hypo/Hyperthermia ma- chine
  2. machine which prevents blood clots SCD
  3. Patient care equipment should be prior to being Cleaned with detergent disinfected.
  4. What is the proper way to transport an IV pump to CS/SPD after patient use?
  5. What type of disinfectant is to be used for patient care equipment?

in a covered cart or a closed plastic bag

the one recommended by the device manufacturer

  1. Soiled patient care equipment needs to be during contained transport
  2. Series of stainless steel used to manufacture mal- leable retractors
  3. Series of stainless steel used to manufacture os- teotomes?
  1. When the jaws of a stainless steel needle holder become worn, it must be

Discarded

  1. instruments cracks most likely occur where? box lock
  2. Cracked insulation on a laparoscopic instrument can electrical shock cause
  3. How should power equipment be lubricated? According to the manufac- turer's instruction
  4. what information is required when labeling a rigid scope for sterilization?
    1. Manufacturer
    2. size and visual field of scope
    3. O.R. Service
  5. What are the 3 common methods of checking visual 1. looking at a white piece of clarity for a rigid endoscope? paper^ through^ the^ scope
    1. Holding the scope up to a light source
    2. Using a tester manufac- tured for this purpose
  6. what is never to be used to mark and identify instru- Engraving ments?
  7. the prep and packaging area must be maintained in pressure.
  8. the prep and packaging area must have an air ex- change rate of per

Positive

10 per hour

  1. the acceptable temperature range from the prep and packaging area is F
  2. the ideal humidity in the prep and pack area should be %

68 - 73'F

  1. a non-perforated tray used for sterilizing instrument tilted sets must be on the sterilizer rack
  2. How often should floors in the preparation area be wet mopped?
  3. while assembling a set with heavy and delicate in- struments, where should the heavier instruments be placed?
  4. what can aid in the drying of wrapped instrument sets?

daily

on the bottom of the set

A towel in the bottom of the tray