Wisconsin CNA State Exam Vocabulary Practice 2025 - Free CNA Vocabulary Practice Questions and Study Guide

Infection refers specifically to the state resulting from pathogens invading the body and multiplying. This phenomenon occurs when harmful microorganisms such as bacteria, viruses, fungi, or parasites enter the body, overcome its defenses, and begin to reproduce. This can lead to illness or disease as the body attempts to fight off the invading pathogens. During this process, the immune system is activated, and various symptoms may arise as the body responds to the infection.

Understanding infection is critical in the healthcare field, especially for a CNA, as it informs proper hygiene practices and precautions to prevent the spread of illness, ensuring the safety and well-being of both patients and staff. The other options presented do not capture the essence of what constitutes an infection, as they pertain either to sleep disturbances, baseline measurements in a medical context, or specific medical devices, none of which involve the concept of pathogens invading and multiplying within the body.