In preparation for infection control before the patient arrives, which of the following areas must be prepared?

The correct choice highlights the importance of preparing multiple elements in the clinical environment to ensure effective infection control before a patient arrives. Infection control in a dental setting involves safeguarding both the patient and healthcare providers from potential exposure to infectious agents.

In preparing for a patient's arrival, it is crucial to disinfect and prepare the x-ray machine, which is frequently touched and may harbor pathogens. The lead apron also requires cleaning, as it may come into contact with the patient and could transfer pathogens. Additionally, the exposure button must be sanitized since it is often touched by both the radiographer and the patient, making it a high-touch surface. Lastly, the counter and work areas must be organized and disinfected to eliminate any potential sources of contamination.

By focusing on all these areas, dental professionals create a safer environment for procedures related to dental radiography. Comprehensive preparation helps minimize the risk of cross-contamination, thus playing a vital role in infection control practices within the dental office.