Wisconsin Certified Nursing Assistant (CNA) Practice Exam

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Prepare for the Wisconsin CNA Test with flashcards and multiple choice questions. Each question includes hints and explanations to help you succeed. Ace your exam with confidence!

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Which of the following is NOT one of the links in the chain of infection?

Reservoir
Mode of transportation
Causative agent
Portal of entry

The correct answer is: Mode of transportation

The chain of infection consists of a series of links that, when intact, facilitate the transmission of infectious diseases. These links include the causative agent, reservoir, portal of exit, mode of transmission, portal of entry, and susceptible host. In this context, the correct response identifies that "mode of transportation" is not a standardized term within the chain of infection framework. Instead, it is referred to as "mode of transmission." This distinction is crucial because the mode of transmission specifically describes how the infectious agent moves from one environment or host to another. For instance, this can occur via direct contact, indirect contact, droplet spread, or vectors. Understanding this framework is essential for infection control practices, as breaking any of these links can help in preventing the spread of infections. The other options provided—reservoir, causative agent, and portal of entry—are recognized components of the chain of infection, each playing a significant role in the transmission cycle of infectious diseases.