Functional status refers to an individual's ability to perform daily activities and tasks essential for living independently. It encompasses physical, mental, and social capabilities, which can be affected by various factors such as age, health conditions, and lifestyle choices. Assessing functional status helps healthcare providers understand a person's overall well-being and determine the level of support they may need. Measuring functional status often involves evaluating activities of daily living (ADLs), such as bathing, dressing, and eating, as well as instrumental activities of daily living (IADLs), like managing finances and transportation. Tools like the Katz ADL scale or the Lawton IADL scale are commonly used to assess these abilities, guiding interventions and care plans tailored to individual needs.