Review with Complete Worked Solutions.
SECTION 1: Emergency Treatment Area (ETA) Operations
(Questions 1–12)
Q1: The Emergency Treatment Area (ETA) consists of how many primary sections?
A. Two
B. Three
C. Four
D. Five
Correct Answer: B
Rationale: Correct because the ETA consists of three sections: patient reception and receiving
area, decontamination corridor, and clean treatment & transport area. Per HERT standards,
this tri-section design ensures contaminated, decontaminating, and clean zones remain
separated to prevent cross-contamination.
Q2: Which of the following is NOT a component of the decontamination corridor?
A. Registration
B. Triage
C. Surgical intervention
D. Clothing removal
Correct Answer: C
Rationale: Correct because the decontamination corridor components include registration,
triage, scrub/clean decontamination, sort & survey, clothing removal, and
treatment/transport. Surgical intervention is performed in the clean treatment area, not the
decontamination corridor.
Q3: What type of event would most likely trigger the establishment of an ETA?
A. Routine patient overflow
B. CBRNE event
,C. Scheduled outpatient surgery
D. Staff training exercise only
Correct Answer: B
Rationale: Correct because the set-up of an ETA is triggered by a CBRNE (Chemical, Biological,
Radiological, Nuclear, or Explosive) event. Emergency response protocol requires ETA
activation for mass casualty incidents involving hazardous materials.
Q4: Technical decontamination is used for which group?
A. Victims exposed to chemical agents
B. Responders and equipment
C. Pediatric patients
D. Deceased victims
Correct Answer: B
Rationale: Correct because there are two types of decontamination: patient decontamination
(removing contaminants from victims) and technical decontamination (removing
contamination from responders). Technical decontamination is never used on victims.
Q5: What is the primary criterion for assessing victims prior to entering the victim reception
area?
A. Severity of injuries
B. Potentially contaminated vs. uncontaminated
C. Age and weight
D. Insurance status
Correct Answer: B
Rationale: Correct because the primary criteria for assessing victims prior to entering the
victim reception area are potentially contaminated vs. uncontaminated. This determination
dictates whether victims require decontamination before entering clean treatment zones.
Q6: When decontaminating non-ambulatory victims, responders should avoid which action to
prevent cross-contamination?
A. Wearing Level C PPE
,B. Straddling or reaching across victims
C. Using tepid water
D. Removing jewelry
Correct Answer: B
Rationale: Correct because when decontaminating non-ambulatory victims, responders
should avoid straddling or reaching across victims to prevent cross-contamination. OSHA
guidance indicates this practice protects both responders and victims from secondary
exposure.
Q7: Approximately what percentage of contaminant removal is achieved by the removal of
contaminated clothing during decontamination?
A. 20–40%
B. 40–60%
C. 60–80%
D. 80–100%
Correct Answer: C
Rationale: Correct because removal of contaminated clothing during decontamination
accounts for approximately 60-80% of contaminant removal. Per HERT decontamination
protocols, this step is the most critical initial action in reducing victim contamination.
Q8: In the ETA, where does the "sort & survey" step occur?
A. Patient reception area
B. Decontamination corridor
C. Clean treatment area
D. Transport staging area
Correct Answer: B
Rationale: Correct because the decontamination corridor components include registration,
triage, scrub/clean decontamination, sort & survey, clothing removal, and
treatment/transport. Sort & survey occurs within the decontamination corridor to assess
decontamination effectiveness.
Q9: Which section of the ETA is considered the "clean" zone?
, A. Patient reception and receiving area
B. Decontamination corridor
C. Clean treatment & transport area
D. Ambulance bay
Correct Answer: C
Rationale: Correct because the clean treatment & transport area is the third section of the
ETA and is designated as the clean zone where decontaminated patients receive definitive
medical care and are prepared for transport or discharge.
Q10: The scrub/clean decontamination step in the ETA corridor typically involves:
A. Surgical preparation
B. Soap and water washing
C. Administration of antidotes
D. Radiation shielding
Correct Answer: B
Rationale: Correct because scrub/clean decontamination in the ETA corridor involves washing
victims with soap and water to remove contaminants from skin and hair. Emergency response
protocol requires this mechanical removal process before victims proceed to clean areas.
Q11: Victims who are determined to be uncontaminated may bypass which ETA section?
A. Patient reception area
B. Decontamination corridor
C. Clean treatment area
D. All ETA sections
Correct Answer: B
Rationale: Correct because victims assessed as uncontaminated do not require
decontamination and may bypass the decontamination corridor, proceeding directly to the
clean treatment & transport area for medical evaluation.
Q12: During ETA operations, which of the following is the primary responsibility of personnel
in the patient reception area?