What visual indicator is used for overdue deficiencies?

The correct choice is associated with the use of red as a visual indicator for overdue deficiencies. This is a commonly accepted practice in many professional settings, including healthcare documentation and electronic health records. The color red is universally recognized as a warning signal, prompting immediate attention to critical issues. In the context of overdue deficiencies, using red ensures that staff members are alerted to items that require urgent follow-up or action, thereby promoting patient safety and compliance with regulatory standards.

The other formatting options, while they may draw attention in their own way, do not carry the same level of immediate urgency and awareness that the color red conveys. Highlighting in yellow may indicate caution, but it is less striking than red. Bold text can emphasize important information, but it lacks the urgency associated with overdue items. Italicized font is typically used for distinction or emphasis in a more subtle manner, which is not appropriate for items needing immediate action. Therefore, the use of red is the most effective method for signaling overdue deficiencies, making it the correct choice.