When the Problem List is in read-only mode, how is the principal problem indicated?

When the Problem List is in read-only mode, the principal problem is indicated by a blue diamond. This visual cue helps healthcare providers quickly identify the primary issue affecting the patient and is important for ensuring that members of the care team are aligned on the main focus of treatment. The use of standardized icons like the blue diamond aids in improving workflow efficiency and communication amongst medical staff, particularly in fast-paced inpatient environments where clarity and quick recognition can impact patient care decisions.

The other options, while potentially relevant in other contexts or systems, do not specifically denote the principal problem in this scenario. Each icon typically has specific meanings or uses in other settings, but it is the blue diamond that universally signifies the primary concern in the Problem List when it is set to read-only mode.