Which term defines a state where a patient is not bedridden?

The term "ambulant" refers to a state in which a patient is able to walk or move around independently, indicating they are not confined to bed. This is an important distinction in medical terminology, as it conveys the patient's mobility status. In contrast to being bedridden, an ambulant patient can typically engage in activities that require walking or standing, which can be crucial for recovery and overall health.

While "immobile" describes a lack of movement, "bedridden" specifically indicates a person who is confined to bed and unable to move freely. The term "convalescent" refers to a period of recovery following an illness or medical treatment; while a convalescent individual may eventually become ambulant, they don’t necessarily imply the current state of mobility.

Thus, "ambulant" is the accurate choice here as it directly signifies a patient's ability to not only leave the bed but also to engage in a more active lifestyle.