Certified Occupational Health Nurse Practice Exam 2026 - Free Occupational Health Nurse Practice Questions and Study Guide

Heat stress is considered a physical hazard because it directly relates to environmental conditions that can cause harm to the body. Physical hazards are defined as agents that can cause injury or impair health through physical means, such as temperature extremes, noise, or radiation. Heat stress occurs when the body is unable to cool itself adequately, leading to potential heat-related illnesses such as heat exhaustion or heat stroke.

This distinction is important in the context of occupational health and safety. For example, occupational environments with high temperatures, high humidity, or inadequate ventilation can create situations where workers are at risk for heat stress. Understanding how different types of physical hazards affect worker health helps occupational health nurses develop appropriate prevention and intervention strategies.

In contrast, psychological stress pertains to mental health issues rather than physical conditions, contaminated body fluids represent a biological hazard, and assaults and violent acts fall under the category of psychosocial hazards. Thus, heat stress stands out as a clear example of a physical hazard in occupational settings.