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Norton Scale

Norton Scale: The original pressure ulcer risk tool. Like Braden, a lower score indicates higher risk (maximum intact physiology = 20, lowest state = 5).

Rate 5 categories

1. Physical Condition

2. Mental State

3. Activity

4. Mobility

5. Incontinence

Guidelines & Evidence

Clinical Details

Section 1

When to Use

When to Use

Baseline risk assessment for pressure ulcers upon admission to hospital or long-term care.
Routine reassessment in older adults experiencing acute illness or functional decline.
Guiding the allocation of pressure-relieving mattresses and turning schedules.

The First Validated Tool

The Norton Scale, created in 1962, was the very first established risk assessment tool for pressure injuries. While the Braden Scale is more commonly used in the US today, the Norton Scale remains popular globally due to its simplicity and focus on the geriatric patient.
Section 2

Formula & Logic

Scoring

5 subscales, each scored 1 (worst) to 4 (best). Total score: 5–20 Score ≤ 14 indicates "At Risk" for pressure ulcer development. Score ≤ 12 indicates "High Risk".

The 5 Subscales

Physical ConditionVery bad (1) to Good (4)
Mental StateStupor (1), Confused (2), Apathetic (3), Alert (4)
ActivityBedfast (1), Chairbound (2), Walk w/ help (3), Ambulant (4)
MobilityImmobile (1), Very limited (2), Slightly limited (3), Full (4)
IncontinenceDoubly incontinent (1), Usually urinary (2), Occasional (3), Not (4)
Section 3

Pearls/Pitfalls

Lower is Worse

Like the Braden Scale, the Norton Scale operates on a "lower score equals higher risk" paradigm. A score of 20 means the patient has perfectly intact physiology and mobility. A score of 5 means profound multi-system failure and immobility.
Section 4

Next Steps

Management

Section 5

Evidence Appraisal

Primary Reference

An investigation of geriatric nursing problems in hospital.

Norton D et al. • London, National Corporation for the Care of Old People (now Centre for Policy on Ageing).. 1962;The original seminal text that defined modern pressure ulcer prevention.

Section 6

Origins

Doreen Norton

Developed by British nurse Doreen Norton and physician A.N. Exton-Smith. Their groundbreaking 1962 research challenged the prevailing belief that pressure ulcers were an inevitable consequence of aging, proving instead they were a failure of nursing care related to immobility.

Last Comprehensive Review: 2026

Related Geriatrics Tools

Groningen Frailty Indicator
HELP Score
Hendrich II Fall Risk Model
ICIQ-UI SF
interRAI Clinical Assessment
IQCODE
Katz Index of Independence in ADLs
Lawton Instrumental ADL Scale
mFI-5 Preoperative Frailty
Mini Nutritional Assessment
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