ADLs stands for activities of daily living, the basic self-care tasks a person needs to perform to function day to day. In nursing, ADLs are the foundation for assessing how independent a patient is and what level of care they need. There are six core ADLs, and evaluating a patient’s ability to perform them shapes everything from care plans to discharge decisions.
The Six Basic ADLs
The six basic activities of daily living, sometimes called physical ADLs, cover the essentials of bodily care and mobility:
- Bathing: Using soap, water, and towels to wash, rinse, and dry the body.
- Dressing: Selecting appropriate clothing and putting it on, including fasteners like buttons and zippers.
- Toileting: Getting to and from the toilet, using it, and cleaning up afterward.
- Transferring: Moving from one position to another, such as getting in and out of bed or a chair.
- Continence: Maintaining control over bladder and bowel function.
- Feeding: Getting food from a plate into the mouth without assistance (this doesn’t include cooking or preparing the food).
These six tasks represent the minimum a person needs to handle independently to survive without constant help. When a patient loses the ability to perform even one of them, it signals a need for hands-on support.
Instrumental ADLs: The Next Level
Beyond the basics, there’s a second category called instrumental activities of daily living (IADLs). These require more complex thinking, organization, and problem-solving than basic ADLs, and they’re what a person needs to live independently in a community rather than just meet immediate physical needs.
IADLs include tasks like managing money and paying bills, cooking meals, doing laundry, shopping for groceries and household supplies, using a phone or computer to communicate, and managing transportation. There are eight IADLs tracked in standard assessments. A patient who can bathe and dress independently but can’t manage finances or prepare food still needs significant support to live on their own.
The distinction matters in nursing because a patient might score well on basic ADLs while struggling with IADLs, which changes what kind of care or services they need after discharge. Someone heading home alone needs both categories covered.
How Nurses Assess ADLs
Nurses use standardized tools to turn observations into a consistent, comparable score. The two most common are the Katz Index and the Lawton Scale.
The Katz Index
The Katz Index of Independence in Activities of Daily Living measures the six basic ADLs. Each function gets a simple binary score: 1 point if the patient can do it independently (no supervision, direction, or physical help), and 0 points if they need any assistance. The total ranges from 0 to 6. A score of 6 means full independence. A score of 4 suggests moderate impairment. A score of 2 or less indicates severe functional impairment.
The scoring has specific thresholds that keep it consistent across nurses and facilities. For bathing, a patient still counts as independent if they only need help with one body part, like the back. For dressing, needing help tying shoes is acceptable for an independence score, but needing help with anything else counts as dependent. For feeding, someone else can prepare the food, but if the patient can get it from plate to mouth alone, that’s independent. These clear cutoffs reduce guesswork.
The Lawton IADL Scale
The Lawton Instrumental Activities of Daily Living Scale covers the eight more complex tasks. It also produces a summary score from 0 (low functioning) to 8 (high functioning). Nurses typically use the Katz for basic needs and the Lawton for community-living skills, giving a fuller picture of what a patient can and can’t manage.
Why ADL Assessment Shapes the Care Plan
ADL scores don’t just sit in a chart. They directly drive nursing interventions. When a patient has a self-care deficit in one or more ADLs, the care plan shifts to address it. That might mean providing step-by-step verbal cues during bathing (“wash the right side of your face, now the left”), setting out hygiene supplies like a toothbrush and washcloth to prompt the patient, or arranging adaptive equipment that lets someone feed or dress themselves with limited mobility.
The goal in most cases isn’t to do the task for the patient. It’s to support as much independence as possible while keeping them safe. A nurse might assist with the parts of dressing a patient can’t manage while encouraging them to do what they can. This approach preserves dignity and often improves outcomes, because patients who stay active in their own care tend to recover more function over time.
ADL assessments also guide discharge planning. A patient scoring a 6 on the Katz Index with strong IADL scores can likely go home without services. Someone scoring a 2 with poor IADL function may need a skilled nursing facility, home health aide, or family caregiver arrangement. These decisions happen early and get reassessed throughout a hospital stay or rehabilitation course.
ADL Documentation and Facility Reimbursement
Accurate ADL documentation carries financial weight for healthcare facilities. Under Medicare’s Patient Driven Payment Model (PDPM), implemented in 2019, skilled nursing facility payments are calculated using a combination of factors including a nursing component and therapy components. The patient’s functional status, measured largely through ADL scores, directly influences how much Medicare reimburses the facility.
This means that when nurses document ADL levels, they’re not just informing clinical care. They’re generating data that determines payment rates. Facilities have faced scrutiny from the Office of Inspector General for billing Medicare at incorrect reimbursement rate codes when medical records didn’t support the assigned functional level. Inaccurate ADL documentation, whether it overstates or understates a patient’s abilities, creates both compliance risks and care quality problems.
ADLs Across Different Care Settings
ADL assessment looks slightly different depending on where care happens. In acute care hospitals, the focus is often on how a patient’s ADL function has changed from their baseline, which helps identify complications or readiness for discharge. In rehabilitation settings, ADL scores are tracked over time to measure progress. Occupational therapists and nurses work together here, with the therapist training the patient in adaptive techniques and the nurse reinforcing those skills during daily care.
In home health and long-term care, ADL assessments determine the level of service a patient qualifies for. A person who needs help with all six basic ADLs requires a very different staffing plan than someone who only needs assistance with bathing and transfers. In geriatric care specifically, declining ADL function often serves as an early warning sign of cognitive decline, depression, or worsening chronic disease, prompting further evaluation beyond the ADL assessment itself.