The occupational health nurse is teaching industrial plant employees about the routes of exposure for chemicals used in the plant. The nurse bases the program on the knowledge that the main route of occupational exposure is:
A) inhalation.
B) ingestion.
C) dermal absorption.
D) transplacentally.
A) inhalation.
Explanation: A) The actual route of exposure–how the contaminant contacts or enters the human body–can be through inhalation, ingestion, dermal absorption, or transplacentally. The primary route of exposure in occupational settings is inhalation.
B) The primary route of exposure to chemicals in the environment (e.g., at home, at school, during recreational activities) is ingestion.
C) Dermal absorption may occur in the workplace; however, the primary route of exposure in occupational settings is inhalation.
D) Transplacental exposure occurs when chemicals cross the placental barrier to the fetus; however, the primary route of exposure in occupational settings is inhalation.
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