Braden Pressure Injury Scale
Assess pressure injury risk using the Braden Scale's six subscales.
Results
Visualization
How It Works
The Braden Pressure Injury Scale calculator assesses a patient's risk of developing pressure ulcers (bedsores) by scoring six key factors: sensory perception, moisture, activity, mobility, nutrition, and friction/shear. A lower total score indicates higher risk, helping nurses identify vulnerable patients early and implement preventive interventions before pressure injuries develop.
The Formula
Variables
- Sensory Perception (1-4) — Patient's ability to respond to pressure-related discomfort. Scores range from 1 (completely limited) to 4 (no impairment). Patients with reduced sensation cannot shift position to relieve pressure.
- Moisture (1-4) — Degree to which skin is exposed to moisture from perspiration, urine, or drainage. Scores range from 1 (constantly moist) to 4 (rarely moist). Moisture softens skin and increases breakdown risk.
- Activity (1-4) — Extent of physical activity the patient performs. Scores range from 1 (bedfast) to 4 (walks frequently). Immobile patients cannot relieve pressure through movement and position changes.
- Mobility (1-4) — Ability to change and control body position independently. Scores range from 1 (completely immobile) to 4 (no limitations). This differs from activity and reflects strength and voluntary control.
- Nutrition (1-4) — Usual food intake pattern and adequacy. Scores range from 1 (very poor) to 4 (excellent). Inadequate protein and calories impair skin integrity and wound healing ability.
- Friction & Shear (1-3) — Extent to which skin moves against support surfaces. Scores range from 1 (problem) to 3 (no apparent problem). Shear forces from sliding or friction directly damage skin and underlying tissues.
Worked Example
Let's say you're assessing Mrs. Chen, a 78-year-old patient recovering from hip surgery who is bedfast and has limited mobility. You evaluate her across all six subscales: she has reduced sensation (2 points), moist skin from perspiration (2 points), is bedfast (1 point), cannot turn herself without assistance (2 points), has poor oral intake due to nausea (2 points), and requires maximum assistance with turning, indicating friction/shear concerns (2 points). Adding these together: 2 + 2 + 1 + 2 + 2 + 2 = 11 points. A score of 11 places Mrs. Chen in the "Very High Risk" category (≤12), so immediate preventive measures are warranted: pressure-relieving mattress, frequent repositioning every 2 hours, skin care protocols, and nutritional support.
Practical Tips
- Assess all six subscales consistently using the standard Braden Scale definitions—don't rely on assumptions about a patient's risk based on age or diagnosis alone, as individual factors vary significantly.
- Perform reassessments regularly (at admission, weekly, and whenever the patient's condition changes) since Braden scores can improve or decline as patients progress through recovery or experience complications.
- Educate patients and families about their pressure injury risk category so they understand why preventive measures like frequent turning or special mattresses are necessary, improving compliance with interventions.
- Use the Braden Scale alongside clinical judgment and other risk factors (like incontinence, previous pressure injuries, or certain medications) to develop individualized prevention plans rather than treating the score as the only factor.
- Document the patient's specific scores for each subscale in the medical record, not just the total, so the care team can target interventions to the patient's most significant risk areas (e.g., focusing on nutrition support if that subscale is very low).
Frequently Asked Questions
What does a Braden score of 16 mean for my patient?
A score of 16 falls into the "Moderate Risk" category (15-18 range), meaning the patient has some pressure injury risk but is not in the highest-risk groups. You should implement standard pressure prevention measures such as repositioning every 4 hours, monitoring skin regularly, and ensuring adequate nutrition and hydration. Higher-risk patients (scores ≤14) require more intensive interventions like pressure-relieving devices.
Why is the friction and shear subscale only scored 1-3 instead of 1-4 like the others?
The friction and shear subscale uses a 3-point scale (not 4-point) because the original Braden Scale research determined that meaningful distinctions in pressure injury risk could be captured with three levels for this factor. This is part of the validated scale's design and should not be changed when calculating scores.
Can a patient's Braden score improve during hospitalization?
Yes, absolutely. As patients recover mobility, their nutritional status improves, or incontinence is managed better, their subscale scores can increase, lowering overall pressure injury risk. For example, a patient who becomes mobile after surgery or whose nutrition is optimized may improve from high risk to moderate risk, allowing you to adjust prevention protocols accordingly.
Is the Braden Scale appropriate for all patient populations?
The Braden Scale is widely used and evidence-based for general adult populations, but it has limitations in certain groups. It may be less reliable in critically ill patients or those with darkly pigmented skin (where early pressure injury signs are harder to detect). Consider supplementary risk factors and clinical assessment for these populations, and use alternative tools if your facility recommends them for specific patient groups.
What's the difference between a patient with a score of 12 versus a score of 14?
A score of 12 is classified as "Very High Risk" while a score of 14 is "High Risk." Although only two points separate them, this distinction matters for intervention intensity—a score of 12 typically warrants more aggressive prevention strategies (like specialized mattresses and hourly turning) compared to a score of 14, which may allow slightly less intensive interventions. Always follow your facility's specific protocols for each risk category.
Sources
- Braden Scale for Predicting Pressure Sore Risk - Official Scale and Instructions
- National Pressure Injury Advisory Panel (NPIAP) - Clinical Practice Guidelines
- American Nurses Association (ANA) - Pressure Injury Prevention and Management
- Wound Care Society - Pressure Ulcer Risk Assessment and Prevention
- The Joanna Briggs Institute - Pressure Injury Prevention and Management Evidence Summary