Final answer:
A monthly reminder to all her patients can be called an appointment, notification, or a memo.
Step-by-step explanation:
A monthly reminder to all her patients can be called an appointment, notification, or a memo. An appointment is a scheduled time for a patient to meet with a healthcare provider, such as a doctor or dentist. A notification is a message or alert that informs someone about a particular event or action. A memo is a written note that is used to communicate important information or reminders.