1
HESI Specialty Exam Bank: Environmental Health
Risks & Occupational Safety for Nurses
Table of Contents
Subtopic 1: Hazard Identification and Exposure Assessment in Clinical Environments ....... 2
Subtopic 2: Personal Protective Equipment (PPE) Selection and Compliance in Healthcare
.................................................................................................................................. 11
Subtopic 3: Waste Management and Safe Handling of Hazardous Materials in Healthcare 19
Subtopic 4: Indoor Air Quality, Ventilation, and Respiratory Hazards in Healthcare Settings
.................................................................................................................................. 28
Subtopic 5: Noise, Radiation, and Ergonomic Hazards in Healthcare Environments (Q81–
Q100) ......................................................................................................................... 36
Subtopic 6: Bloodborne Pathogen Exposure & Needle Stick Injury Prevention .................. 45
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Subtopic 1: Hazard Identification and Exposure
Assessment in Clinical Environments
(Questions 1–20)
Question 1:
A nurse is assigned to a unit where patients frequently receive aerosolized medications.
What is the most appropriate action to minimize the nurse’s inhalation exposure?
A. Keep room windows closed during administration
B. Wear a regular surgical mask
C. Use a fit-tested N95 respirator during administration
D. Open doors to ventilate the medication
Correct Answer: C. Use a fit-tested N95 respirator during administration
Rationale: Aerosolized medications pose a risk of airborne exposure. Fit-tested N95
respirators are recommended to minimize inhalation risks, particularly in poorly ventilated
settings.
Question 2:
Which patient care activity places a nurse at the highest risk for dermal exposure to
cytotoxic drugs?
A. Administering oral analgesics
B. Cleaning up a chemotherapy spill
C. Disposing of soiled linens
D. Assisting with a sterile dressing change
Correct Answer: B. Cleaning up a chemotherapy spill
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Rationale: Cytotoxic medications, often used in chemotherapy, pose high dermal risk.
Cleaning up spills without proper PPE can result in significant exposure.
Question 3:
A nurse reports dizziness and headaches while working near a sterilization machine. What
occupational hazard should be suspected first?
A. Exposure to ethylene oxide gas
B. Prolonged standing
C. Radiation from nearby equipment
D. High-decibel noise from equipment
Correct Answer: A. Exposure to ethylene oxide gas
Rationale: Ethylene oxide, used in sterilization, is a known neurotoxin and carcinogen.
Symptoms like dizziness and headaches suggest acute chemical exposure.
Question 4:
Which substance is considered most hazardous for reproductive health among nurses
handling it regularly?
A. Saline irrigation
B. Antineoplastic agents
C. Normal insulin
D. Proton pump inhibitors
Correct Answer: B. Antineoplastic agents
Rationale: Antineoplastic drugs (chemotherapy agents) are teratogenic, mutagenic, and
carcinogenic, posing significant reproductive risks to healthcare workers.
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Question 5:
A nurse is working in a hospital construction zone. What is the most likely environmental
hazard in this area?
A. MRSA contamination
B. Airborne fungal spores like Aspergillus
C. Increased patient noise complaints
D. Cross-contamination with enteric bacteria
Correct Answer: B. Airborne fungal spores like Aspergillus
Rationale: Construction activities disturb dust containing Aspergillus spores, which can
cause opportunistic infections, especially in immunocompromised patients.
Question 6:
Which of the following is considered a sentinel event related to environmental health in
healthcare?
A. A fall in the hallway
B. Exposure of staff to a chemical spill requiring evacuation
C. Delay in medication administration
D. Missing documentation of vital signs
Correct Answer: B. Exposure of staff to a chemical spill requiring evacuation
Rationale: A sentinel event involves unexpected safety incidents. A chemical exposure
requiring evacuation is significant and must be reported and analyzed.
Question 7:
When evaluating cumulative lead exposure in a healthcare worker, which biological marker
is most appropriate?
HESI Specialty Exam Bank: Environmental Health
Risks & Occupational Safety for Nurses
Table of Contents
Subtopic 1: Hazard Identification and Exposure Assessment in Clinical Environments ....... 2
Subtopic 2: Personal Protective Equipment (PPE) Selection and Compliance in Healthcare
.................................................................................................................................. 11
Subtopic 3: Waste Management and Safe Handling of Hazardous Materials in Healthcare 19
Subtopic 4: Indoor Air Quality, Ventilation, and Respiratory Hazards in Healthcare Settings
.................................................................................................................................. 28
Subtopic 5: Noise, Radiation, and Ergonomic Hazards in Healthcare Environments (Q81–
Q100) ......................................................................................................................... 36
Subtopic 6: Bloodborne Pathogen Exposure & Needle Stick Injury Prevention .................. 45
, 2
Subtopic 1: Hazard Identification and Exposure
Assessment in Clinical Environments
(Questions 1–20)
Question 1:
A nurse is assigned to a unit where patients frequently receive aerosolized medications.
What is the most appropriate action to minimize the nurse’s inhalation exposure?
A. Keep room windows closed during administration
B. Wear a regular surgical mask
C. Use a fit-tested N95 respirator during administration
D. Open doors to ventilate the medication
Correct Answer: C. Use a fit-tested N95 respirator during administration
Rationale: Aerosolized medications pose a risk of airborne exposure. Fit-tested N95
respirators are recommended to minimize inhalation risks, particularly in poorly ventilated
settings.
Question 2:
Which patient care activity places a nurse at the highest risk for dermal exposure to
cytotoxic drugs?
A. Administering oral analgesics
B. Cleaning up a chemotherapy spill
C. Disposing of soiled linens
D. Assisting with a sterile dressing change
Correct Answer: B. Cleaning up a chemotherapy spill
, 3
Rationale: Cytotoxic medications, often used in chemotherapy, pose high dermal risk.
Cleaning up spills without proper PPE can result in significant exposure.
Question 3:
A nurse reports dizziness and headaches while working near a sterilization machine. What
occupational hazard should be suspected first?
A. Exposure to ethylene oxide gas
B. Prolonged standing
C. Radiation from nearby equipment
D. High-decibel noise from equipment
Correct Answer: A. Exposure to ethylene oxide gas
Rationale: Ethylene oxide, used in sterilization, is a known neurotoxin and carcinogen.
Symptoms like dizziness and headaches suggest acute chemical exposure.
Question 4:
Which substance is considered most hazardous for reproductive health among nurses
handling it regularly?
A. Saline irrigation
B. Antineoplastic agents
C. Normal insulin
D. Proton pump inhibitors
Correct Answer: B. Antineoplastic agents
Rationale: Antineoplastic drugs (chemotherapy agents) are teratogenic, mutagenic, and
carcinogenic, posing significant reproductive risks to healthcare workers.
, 4
Question 5:
A nurse is working in a hospital construction zone. What is the most likely environmental
hazard in this area?
A. MRSA contamination
B. Airborne fungal spores like Aspergillus
C. Increased patient noise complaints
D. Cross-contamination with enteric bacteria
Correct Answer: B. Airborne fungal spores like Aspergillus
Rationale: Construction activities disturb dust containing Aspergillus spores, which can
cause opportunistic infections, especially in immunocompromised patients.
Question 6:
Which of the following is considered a sentinel event related to environmental health in
healthcare?
A. A fall in the hallway
B. Exposure of staff to a chemical spill requiring evacuation
C. Delay in medication administration
D. Missing documentation of vital signs
Correct Answer: B. Exposure of staff to a chemical spill requiring evacuation
Rationale: A sentinel event involves unexpected safety incidents. A chemical exposure
requiring evacuation is significant and must be reported and analyzed.
Question 7:
When evaluating cumulative lead exposure in a healthcare worker, which biological marker
is most appropriate?
