IICRC TCST (TRAUMA AND CRIME SCENE
CLEANUP TECHNICIAN) EXAM COMPLETE
QUESTIONS AND DETAILED SOLUTIONS
LATEST UPDATE THIS YEAR-JUST
RELEASED
1.
While cleaning a suicide scene, a technician notices blood
saturation beneath laminate flooring extending into the
subfloor seams. What should be the MOST appropriate
action?
A. Apply disinfectant only to the visible flooring surface
B. Seal the floor edges with paint and leave the subfloor
intact
C. Remove affected flooring materials and evaluate
subfloor contamination
D. Dry the area rapidly using air movers before inspection
Answer: C
Rationale:
Bloodborne contamination frequently migrates beneath
surface materials. Proper TCST protocol requires removal
and inspection of potentially affected porous materials
,because disinfectants cannot reliably penetrate deeply
contaminated substrates.
2.
A technician removes contaminated gloves after handling
biohazard waste but immediately answers a cellular phone
before washing hands. Which safety principle was MOST
directly violated?
A. Engineering controls
B. Universal precautions and contamination control
C. Respiratory protection compliance
D. Exposure incident reporting
Answer: B
Rationale:
Universal precautions require treating contaminated
materials as infectious while preventing cross-
contamination. Touching personal items before hand
hygiene creates contamination transfer risks.
3.
During trauma cleanup operations, which statement
BEST describes the purpose of negative air pressure
containment systems?
,A. Increase odor intensity for easier source detection
B. Prevent contaminants from migrating into unaffected
areas
C. Accelerate evaporation of biological fluids
D. Eliminate the need for respiratory protection
equipment
Answer: B
Rationale:
Negative pressure containment helps isolate airborne
contaminants and prevents migration into clean
environments, reducing exposure and cross-contamination
risks.
4.
A technician preparing disinfectant solution ignores
manufacturer dilution instructions and mixes a stronger
concentration for “extra protection.” What is the MOST
likely concern?
A. Stronger solutions always improve disinfectant
effectiveness
B. Improper dilution may reduce effectiveness and create
safety hazards
C. EPA regulations require double-strength disinfectants
, for blood cleanup
D. Overconcentration only affects odor production
Answer: B
Rationale:
Improper chemical dilution can reduce efficacy, damage
surfaces, increase toxicity, and violate manufacturer
instructions required for EPA-registered disinfectants.
5.
A trauma cleanup employee experiences a needle-stick
injury from improperly discarded sharps during waste
handling. What should occur FIRST?
A. Continue working until shift completion
B. Dispose of the needle before reporting exposure
C. Follow exposure-control procedures and seek immediate
medical evaluation
D. Wait for symptoms before documenting the incident
Answer: C
Rationale:
Needle-stick injuries are medical emergencies requiring
immediate exposure response, reporting, documentation,
and professional medical evaluation under OSHA
standards.
CLEANUP TECHNICIAN) EXAM COMPLETE
QUESTIONS AND DETAILED SOLUTIONS
LATEST UPDATE THIS YEAR-JUST
RELEASED
1.
While cleaning a suicide scene, a technician notices blood
saturation beneath laminate flooring extending into the
subfloor seams. What should be the MOST appropriate
action?
A. Apply disinfectant only to the visible flooring surface
B. Seal the floor edges with paint and leave the subfloor
intact
C. Remove affected flooring materials and evaluate
subfloor contamination
D. Dry the area rapidly using air movers before inspection
Answer: C
Rationale:
Bloodborne contamination frequently migrates beneath
surface materials. Proper TCST protocol requires removal
and inspection of potentially affected porous materials
,because disinfectants cannot reliably penetrate deeply
contaminated substrates.
2.
A technician removes contaminated gloves after handling
biohazard waste but immediately answers a cellular phone
before washing hands. Which safety principle was MOST
directly violated?
A. Engineering controls
B. Universal precautions and contamination control
C. Respiratory protection compliance
D. Exposure incident reporting
Answer: B
Rationale:
Universal precautions require treating contaminated
materials as infectious while preventing cross-
contamination. Touching personal items before hand
hygiene creates contamination transfer risks.
3.
During trauma cleanup operations, which statement
BEST describes the purpose of negative air pressure
containment systems?
,A. Increase odor intensity for easier source detection
B. Prevent contaminants from migrating into unaffected
areas
C. Accelerate evaporation of biological fluids
D. Eliminate the need for respiratory protection
equipment
Answer: B
Rationale:
Negative pressure containment helps isolate airborne
contaminants and prevents migration into clean
environments, reducing exposure and cross-contamination
risks.
4.
A technician preparing disinfectant solution ignores
manufacturer dilution instructions and mixes a stronger
concentration for “extra protection.” What is the MOST
likely concern?
A. Stronger solutions always improve disinfectant
effectiveness
B. Improper dilution may reduce effectiveness and create
safety hazards
C. EPA regulations require double-strength disinfectants
, for blood cleanup
D. Overconcentration only affects odor production
Answer: B
Rationale:
Improper chemical dilution can reduce efficacy, damage
surfaces, increase toxicity, and violate manufacturer
instructions required for EPA-registered disinfectants.
5.
A trauma cleanup employee experiences a needle-stick
injury from improperly discarded sharps during waste
handling. What should occur FIRST?
A. Continue working until shift completion
B. Dispose of the needle before reporting exposure
C. Follow exposure-control procedures and seek immediate
medical evaluation
D. Wait for symptoms before documenting the incident
Answer: C
Rationale:
Needle-stick injuries are medical emergencies requiring
immediate exposure response, reporting, documentation,
and professional medical evaluation under OSHA
standards.
