IICRC TCST (TRAUMA AND CRIME SCENE CLEANUP
TECHNICIAN) EXAM 150 MULTIPLE-CHOICE QUESTIONS
WITH ANSWERS AND RATIONALES
DOMAIN 1: IICRC S540 Standard & Professional Conduct (Questions 1–30)
1. What is the correct designation of the IICRC standard that describes
procedures for trauma and crime scene cleanup?
A) IICRC S500
B) IICRC S520
C) IICRC S540
D) IICRC S100
Answer: C – Rationale: The ANSI/IICRC S540 Standard for Trauma and Crime
Scene Cleanup is the industry standard for procedures and precautions at scenes
contaminated by blood, bodily fluids, and OPIM.
2. The acronym OPIM stands for:
A) Other Private Infectious Materials
B) Other Potentially Infectious Materials
C) Organic Pathogen Infectious Matter
D) Occupational Pathogen Isolation Method
Answer: B – Rationale: OPIM includes bodily fluids, tissues, and other materials
that may contain bloodborne pathogens, as defined by OSHA.
3. A customer instructs a technician to remove materials that may contain
asbestos without required testing. This creates which LCCC category?
A) Limitations
B) Complexities
C) Complications
D) Conflicts
Answer: D – Rationale: Conflicts occur when a customer directs work that violates
safety regulations or industry standards, creating a conflict with professional
obligations.
1|Page
,4. LCCC stands for:
A) Limitations, Complexities, Complications, Conflict
B) Levels, Controls, Containment, Cleanup
C) Legal, Chemical, Containment, Certification
D) Limitations, Chemicals, Containers, Compliance
Answer: A – Rationale: LCCC is used in the S540 Standard to categorize issues
affecting project scope and execution.
5. Under the Principles of Trauma and Crime Scene Cleanup, the top priority is:
A) Completing the job quickly
B) Minimizing cost to the client
C) Safety and health of workers, occupants, and the public
D) Preserving all personal property
Answer: C – Rationale: Safety and health is the paramount priority, overriding all
other considerations in trauma scene cleanup.
6. The S540 Standard assumes that before cleanup begins, the scene has been:
A) Photographed by the technician
B) Deodorized
C) Released by law enforcement or regulatory agencies
D) Approved by the property owner
Answer: C – Rationale: Cleanup cannot legally begin until law enforcement has
completed its investigation and released the scene.
7. According to the IICRC Code of Ethics, technicians must maintain:
A) A high profit margin
B) Client confidentiality and privacy
C) Daily social media posts about their work
D) The lowest possible bid for every job
Answer: B – Rationale: The IICRC Code of Ethics requires confidentiality;
technicians may not share case details with unauthorized parties.
8. Which document must be signed before work begins on a trauma cleanup
project?
A) OSHA Form 300
2|Page
,B) Material Safety Data Sheet
C) Work authorization (service agreement)
D) Chain of custody form
Answer: C – Rationale: A signed work authorization documents the scope, fees,
and terms, protecting both parties legally.
9. If a technician encounters a situation outside their expertise, the IICRC Code
of Ethics requires them to:
A) Proceed anyway to meet the client's deadline
B) Refer the work to a qualified professional
C) Research the issue online during the job
D) Ignore the issue and focus on visible contamination
Answer: B – Rationale: Technicians must practice only within their competence
and refer work to qualified professionals when necessary.
10. According to S540, impacted materials (e.g., blood on furniture):
A) Must always be replaced
B) Do not necessarily need to be replaced and can often be restored
C) Must be incinerated
D) Cannot be restored due to health risks
Answer: B – Rationale: The S540 Standard emphasizes that impacted materials
can often be restored to a safe, sanitary, usable condition.
11. Which of the following best describes "secondary trauma" for TCST
technicians?
A) Injury from falling debris
B) Bacterial infection following a sharps injury
C) Emotional distress from repeated exposure to traumatic scenes
D) Chemical burns from improper disinfectant mixing
Answer: C – Rationale: Secondary trauma (compassion fatigue) is the emotional
toll from repeated exposure to graphic scenes.
12. The term "putrefaction" refers to:
A) Sterilization of surfaces
B) The decomposition process after death
3|Page
, C) Oxidation of blood stains
D) The removal of sharps
Answer: B – Rationale: Putrefaction is the breakdown of tissues after death,
producing strong odors and fluids.
13. The S540 Standard uses the word "shall" to indicate:
A) A recommended practice
B) A mandatory requirement
C) An optional suggestion
D) A future possibility
Answer: B – Rationale: "Shall" indicates a mandatory requirement; "should"
indicates a recommended practice.
14. The Consensus Body that developed S540 included all of the following
EXCEPT:
A) Practitioners
B) Industrial hygienists
C) Real estate agents
D) A physician
Answer: C – Rationale: The Consensus Body included practitioners, hygienists,
engineers, a chemist, a physician, and instructors — not real estate agents.
15. Which of the following is NOT a component of the LCCC acronym?
A) Limitations
B) Complexities
C) Containment
D) Conflict
Answer: C – Rationale: LCCC stands for Limitations, Complexities, Complications,
Conflict. Containment is a separate safety concept.
16. A homeowner wants a technician to clean blood from a porous sofa instead
of replacing it. According to S540, this is:
A) Always prohibited
B) Permissible if the sofa can be restored to a sanitary condition
4|Page
TECHNICIAN) EXAM 150 MULTIPLE-CHOICE QUESTIONS
WITH ANSWERS AND RATIONALES
DOMAIN 1: IICRC S540 Standard & Professional Conduct (Questions 1–30)
1. What is the correct designation of the IICRC standard that describes
procedures for trauma and crime scene cleanup?
A) IICRC S500
B) IICRC S520
C) IICRC S540
D) IICRC S100
Answer: C – Rationale: The ANSI/IICRC S540 Standard for Trauma and Crime
Scene Cleanup is the industry standard for procedures and precautions at scenes
contaminated by blood, bodily fluids, and OPIM.
2. The acronym OPIM stands for:
A) Other Private Infectious Materials
B) Other Potentially Infectious Materials
C) Organic Pathogen Infectious Matter
D) Occupational Pathogen Isolation Method
Answer: B – Rationale: OPIM includes bodily fluids, tissues, and other materials
that may contain bloodborne pathogens, as defined by OSHA.
3. A customer instructs a technician to remove materials that may contain
asbestos without required testing. This creates which LCCC category?
A) Limitations
B) Complexities
C) Complications
D) Conflicts
Answer: D – Rationale: Conflicts occur when a customer directs work that violates
safety regulations or industry standards, creating a conflict with professional
obligations.
1|Page
,4. LCCC stands for:
A) Limitations, Complexities, Complications, Conflict
B) Levels, Controls, Containment, Cleanup
C) Legal, Chemical, Containment, Certification
D) Limitations, Chemicals, Containers, Compliance
Answer: A – Rationale: LCCC is used in the S540 Standard to categorize issues
affecting project scope and execution.
5. Under the Principles of Trauma and Crime Scene Cleanup, the top priority is:
A) Completing the job quickly
B) Minimizing cost to the client
C) Safety and health of workers, occupants, and the public
D) Preserving all personal property
Answer: C – Rationale: Safety and health is the paramount priority, overriding all
other considerations in trauma scene cleanup.
6. The S540 Standard assumes that before cleanup begins, the scene has been:
A) Photographed by the technician
B) Deodorized
C) Released by law enforcement or regulatory agencies
D) Approved by the property owner
Answer: C – Rationale: Cleanup cannot legally begin until law enforcement has
completed its investigation and released the scene.
7. According to the IICRC Code of Ethics, technicians must maintain:
A) A high profit margin
B) Client confidentiality and privacy
C) Daily social media posts about their work
D) The lowest possible bid for every job
Answer: B – Rationale: The IICRC Code of Ethics requires confidentiality;
technicians may not share case details with unauthorized parties.
8. Which document must be signed before work begins on a trauma cleanup
project?
A) OSHA Form 300
2|Page
,B) Material Safety Data Sheet
C) Work authorization (service agreement)
D) Chain of custody form
Answer: C – Rationale: A signed work authorization documents the scope, fees,
and terms, protecting both parties legally.
9. If a technician encounters a situation outside their expertise, the IICRC Code
of Ethics requires them to:
A) Proceed anyway to meet the client's deadline
B) Refer the work to a qualified professional
C) Research the issue online during the job
D) Ignore the issue and focus on visible contamination
Answer: B – Rationale: Technicians must practice only within their competence
and refer work to qualified professionals when necessary.
10. According to S540, impacted materials (e.g., blood on furniture):
A) Must always be replaced
B) Do not necessarily need to be replaced and can often be restored
C) Must be incinerated
D) Cannot be restored due to health risks
Answer: B – Rationale: The S540 Standard emphasizes that impacted materials
can often be restored to a safe, sanitary, usable condition.
11. Which of the following best describes "secondary trauma" for TCST
technicians?
A) Injury from falling debris
B) Bacterial infection following a sharps injury
C) Emotional distress from repeated exposure to traumatic scenes
D) Chemical burns from improper disinfectant mixing
Answer: C – Rationale: Secondary trauma (compassion fatigue) is the emotional
toll from repeated exposure to graphic scenes.
12. The term "putrefaction" refers to:
A) Sterilization of surfaces
B) The decomposition process after death
3|Page
, C) Oxidation of blood stains
D) The removal of sharps
Answer: B – Rationale: Putrefaction is the breakdown of tissues after death,
producing strong odors and fluids.
13. The S540 Standard uses the word "shall" to indicate:
A) A recommended practice
B) A mandatory requirement
C) An optional suggestion
D) A future possibility
Answer: B – Rationale: "Shall" indicates a mandatory requirement; "should"
indicates a recommended practice.
14. The Consensus Body that developed S540 included all of the following
EXCEPT:
A) Practitioners
B) Industrial hygienists
C) Real estate agents
D) A physician
Answer: C – Rationale: The Consensus Body included practitioners, hygienists,
engineers, a chemist, a physician, and instructors — not real estate agents.
15. Which of the following is NOT a component of the LCCC acronym?
A) Limitations
B) Complexities
C) Containment
D) Conflict
Answer: C – Rationale: LCCC stands for Limitations, Complexities, Complications,
Conflict. Containment is a separate safety concept.
16. A homeowner wants a technician to clean blood from a porous sofa instead
of replacing it. According to S540, this is:
A) Always prohibited
B) Permissible if the sofa can be restored to a sanitary condition
4|Page
