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When a typical person gets up in the morning, they sit up and throw their feet over the edge of the bed. Then they stand and walk to the bathroom. They take care of toileting, then shower, brush their teeth and many other activities to prepare themselves for the day.
When it comes time to think about food, they plan a menu, shop for the foods they want to eat and prepare their meals. Next, they sit down to eat. After the meal, they clean up the kitchen and wash the dishes.
All these activities, and many others, are referred to as Activities of Daily Living.
Activities of Daily Living or ADLs is a term used by healthcare professionals to refer to the basic self-care tasks an individual does on a day-to-day basis. These activities are fundamental in caring for oneself and maintaining independence. An individual's ability or inability to perform ADLs is often used by health professionals as a way of measuring an individual’s functional status, especially that of older adults or those with disabilities.
Basic ADLs, sometimes referred to as BADLs, are self-care activities routinely performed which include, but are not limited to:
One way to look at basic ADLs is to think of them as the activities a person does when they get up in the morning preparing to leave the house and those they do regularly day in and day out.
As a person ages, ADLs slowly become more difficult to accomplish independently and gradually take more time to complete. Certain health issues, such as a stroke, or accidents, such as a fall, also affect a person’s ability to accomplish ADLs, sometimes dramatically.
Instrumental Activities of Daily Living or IADLs are not essential for basic functioning; however, they enable a person to live independently within a community. They’re generally more complex than basic ADLs.
IADLs are made up of activities which include, but are not limited to:
Being able to perform both ADLs and IADLs is important for seniors to be able to successfully and safely live independently.
There are many ADL and IADL evaluation tools used to measure the normal changes that occur due to aging and health problems. A functional assessment providing objective data is one of the best methods of evaluating the health status of older adults to determine future decline or improvement.
The Katz Index of Independence in Activities of Daily Living, generally referred to as the Katz ADL Index, is one of the best tools for this purpose.
The Katz ADL Index was developed by American physician Sidney Katz, MD after studying 64 hip fracture patients over an 18-month time span. The study indicated patients of a certain independence level could perform specific basic activities while others with lesser independence levels were able to perform less of the same activities – ranging from the most complicated being bathing to the least complicated of self-feeding. Using this data, Katz developed a scale to evaluate an individual’s ability to live independently.
The Katz ADL Index ranks proficiency of performance in six functions or activities: bathing, toileting, dressing, continence, feeding and transferring. The Index works best when baseline measurements have been taken during a time when the patient is well. Periodic or subsequent measures can then be compared to this baseline to signal when impairment begins or worsens.
The Katz ADL Index measures basic ADLs. Since it doesn’t measure more advanced ADLs, Katz created a separate scale to measure IADLs. Although the Katz ADL Index can signal changes in health status as it declines, it falls short when measuring small increments of improvements often accomplished in a senior adult's rehabilitation process.
The Katz ADL Index acts as a common language when discussing patient proficiency for all practitioners involved in planning the care and/or discharge of a senior adult.
Together, ADLs and IADLs make up the skills a person generally needs to successfully and safely live independently.
Therefore, a person’s ability or inability to perform ADLs and IADLs is used to gauge their need for care and/or occupational or physical therapy. Most healthcare service models use evaluations such as the Katz ADL Index to determine and evaluate their patient’s proficiencies and to then develop appropriate care plans to ensure all care needs are met.
Physical therapists prescribe exercise to help patients gain and/or maintain their independence based on ADL proficiencies. Prescribed exercises are based on an individual’s problematic ADLs. For example, slow walking speed is associated with an increased risk for falls; therefore, exercises are prescribed to impact and improve ambulation (an ADL proficiency) to reduce fall risk.
When completing patient assessments, occupational therapists often assess a patient's proficiency of IADLs. There are twelve types of IADLs that the American Occupational Therapy Association recognizes as necessary to live in co-occupation with others:
Physicians, geriatric social workers, rehabilitation specialists and others in senior care often evaluate a person’s ability to perform ADLs and IADLs as part of a functional assessment. Difficulties performing IADLs may signal early dementia and Alzheimer's. Evaluations of IADLs are used to make a diagnostic evaluation and influence decisions on the type of care an older adult may require.
Are you trying to determine how much help someone needs with their ADLs and IADLs? Using the Katz ADL Index, this chart will assist you in evaluating their abilities. Then, armed with this data, you’ll be ready to discuss their abilities/inabilities and care needs with their physician, a geriatric care professional and/or a senior planning service.
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