HESI General Chairside Assisting Practice Exam

Which component is essential to prevent cross-contamination in a dental practice?

1. Proper handwashing

2. Waiting room separation

3. Frequent cleaning of surfaces

4. Use of appointment books

The correct answer is: Proper handwashing

The essential component to prevent cross-contamination in a dental practice is proper handwashing. Hand hygiene is the most critical measure to reduce the risk of spreading pathogens. During dental procedures, dental professionals frequently come into contact with various surfaces, instruments, and potentially infected bodily fluids. Effective handwashing, which includes using soap and water or an alcohol-based hand sanitizer, helps eliminate microorganisms from the hands, significantly lowering the risk of infection transmission to both patients and professionals. While waiting room separation, frequent cleaning of surfaces, and the use of appointment books are also important for maintaining overall hygiene and organization in a dental practice, they do not specifically address the immediate prevention of cross-contamination during patient care. These practices support a clean and organized environment but cannot replace the fundamental importance of proper hand hygiene in preventing infections.