Patient Care Technician Certification (PCTC) AMCA Practice Exam 2025 - Free Patient Care Technician Practice Questions and Study Guide

The term that refers to anything posing a risk to the human body or a living organism is "a bio-hazard." This term is specifically used to describe biological substances that can pose a threat to the health of living organisms, primarily humans. Bio-hazards can include a range of materials such as viruses, bacteria, or other potentially infectious materials that may cause disease.

Understanding bio-hazards is crucial in healthcare settings, as they require specific handling procedures to prevent exposure and infection. In contrast, while other options may imply risks to health, they are not as precisely defined as bio-hazards in terms of biological threats. Chemical substances could refer to harmful toxins but do not encompass biological risks. Environmental hazards are broader and may include physical threats like pollution, while health threats can be more generalized health risks rather than specifically biological in nature. This distinction makes "bio-hazard" the most accurate term for the question asked.