Certified Nursing Assistant (CNA) Prometric Practice Exam

Why is a resident with a skin tear at an increased risk for infection?

1. The resident's immune system is compromised

2. The skin opening allows for bacteria to enter the body

3. The area is often exposed to dirt

4. The resident is not taking antibiotics

The correct answer is: The skin opening allows for bacteria to enter the body

A resident with a skin tear is at an increased risk for infection primarily because the skin opening creates a direct pathway for bacteria to enter the body. The skin serves as a critical barrier to infection; when it is compromised, such as through a tear, pathogens can easily infiltrate this barrier. This can lead to localized infections, such as cellulitis, or more systemic infections if the bacteria enter the bloodstream. While it is true that a compromised immune system can increase infection risk, it is not the primary reason for the increased risk due to a skin tear. Additionally, although exposure to dirt can contribute to the likelihood of infection, the main concern with a skin tear is the direct access it provides to harmful microorganisms. Lastly, not taking antibiotics does not have a direct causal relationship with the risk presented by a skin tear; antibiotics would only be relevant if an infection were already present needing treatment, rather than being able to prevent exposure through intact skin. Therefore, the presence of an open wound is the most significant factor in this scenario.