Enter the 9 domain category values into the calculator to perform the assesment from the Hester Davis scale.
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Braden Scale Formula
The calculator above computes a patient’s Braden Score by adding the six subscale values. This score is used to estimate pressure injury risk by combining mobility, skin exposure, nutrition, and related risk factors into one total. In general, lower total scores indicate higher risk.
BS = SP + Mo + A + Mb + N + FS
- BS = Braden Score
- SP = Sensory Perception score (1 to 4)
- Mo = Moisture score (1 to 4)
- A = Activity score (1 to 4)
- Mb = Mobility score (1 to 4)
- N = Nutrition score (1 to 4)
- FS = Friction and Shear score (1 to 3)
The total score ranges from 6 to 23. A score of 23 reflects the lowest level of risk on the scale, while a score closer to 6 reflects the highest level of risk.
Braden Score Interpretation
Many adult care settings interpret the total score using the ranges below. Facility policy and patient population can affect how the result is applied, so the score should always be considered alongside a full clinical assessment.
| Braden Score | Common Interpretation | General Meaning |
|---|---|---|
| 19 to 23 | No Risk | Risk is relatively low, but skin status should still be monitored. |
| 15 to 18 | Mild Risk | Preventive measures may be needed, especially if any single subscale is low. |
| 13 to 14 | Moderate Risk | Patient may need a more structured prevention plan and closer reassessment. |
| 10 to 12 | High Risk | Skin protection, pressure redistribution, and monitoring usually become more important. |
| ≤ 9 | Very High Risk | Immediate, intensive preventive attention is typically warranted. |
What Each Subscale Measures
| Subscale | Range | What It Assesses | Higher Score Usually Means |
|---|---|---|---|
| Sensory Perception | 1 to 4 | How well the patient can feel and respond to pressure-related discomfort | Better ability to sense and react to painful pressure |
| Moisture | 1 to 4 | How often skin is exposed to moisture from perspiration, urine, drainage, or stool | Less frequent skin moisture exposure |
| Activity | 1 to 4 | How much the patient gets out of bed or walks | Greater physical activity |
| Mobility | 1 to 4 | How well the patient can change and control body position | Better independent repositioning ability |
| Nutrition | 1 to 4 | Usual food intake pattern and adequacy of nutritional support | More adequate nutritional intake |
| Friction and Shear | 1 to 3 | Risk from sliding in bed or chair and tissue stress during movement | Less friction and shear exposure |
How to Calculate a Braden Score
- Assess the patient in each of the six categories.
- Select the correct whole-number score for every subscale.
- Enter the values into the calculator above.
- Add all six scores to obtain the total Braden Score.
- Interpret the result using the score ranges for risk level.
- Review the individual subscales, not just the total, because one very low area can still signal a major prevention priority.
A common input mistake is forgetting that Friction and Shear tops out at 3, while the other five subscales go up to 4.
Example Calculation
If a patient has the following subscale scores:
- Sensory Perception = 3
- Moisture = 3
- Activity = 2
- Mobility = 3
- Nutrition = 3
- Friction and Shear = 2
BS = 3 + 3 + 2 + 3 + 3 + 2 = 16
A total of 16 is commonly interpreted as mild risk. Even with a mild-risk total, targeted prevention may still be needed if the patient has limited activity, poor mobility, excess moisture, or another clearly weak subscale.
How the Calculator Helps
This calculator is most useful as a fast arithmetic check. Instead of adding the six values manually, it returns the total score immediately so you can focus on interpretation and care planning. It is especially helpful when reassessing patients over time and comparing whether risk is improving, worsening, or staying stable.
Practical Notes for Use
- Use the calculator after assigning the six subscale values first; it does not determine the clinical rating for you.
- Reassess when there is a major change in mobility, cognition, moisture exposure, nutrition, or overall condition.
- Do not rely on the total score alone; localized skin findings, medical devices, perfusion issues, and recent decline may also affect prevention decisions.
- When documenting trends, a falling score generally means increasing risk and a rising score generally means decreasing risk.
Common Questions
What is the highest possible Braden Score?
The highest possible total is 23, which reflects the lowest level of risk on the scale.
What is the lowest possible Braden Score?
The lowest possible total is 6, which reflects the highest level of risk on the scale.
Why can two patients have the same total but different care needs?
Because the total score summarizes six different domains. One patient may score low due to moisture and friction, while another scores low due to immobility and poor nutrition. The total helps estimate overall risk, but the subscales help identify why the risk is present.
Is a higher or lower score better?
A higher Braden Score is better. Higher values usually reflect better sensation, less moisture exposure, more activity, better mobility, stronger nutrition, and less friction or shear.
