Waterlow Score Calculator

Waterlow Score Calculator for Geriatrics. Reassess when clinical status changes and inspect the skin. Do not infer that a lower score makes prevention unnecessary. Combine the score with clinical judgment and the local prevention pathway. This page does not prescribe equipment or a turning interval.

For shared guidance on choosing a tool and documenting results, read the clinical calculator workflow.

How this calculator works

The AHRQ comparative-effectiveness review identifies the classic Waterlow score range as 1-64. This page accepts that range and does not supply the protected scoring card. Source: https://effectivehealthcare.ahrq.gov/sites/default/files/pdf/pressure-ulcer-prevention_research.pdf

When to use this calculator

Use an authorized local assessment to identify prevention needs; check whether the local form has been modified before entering the total. NICE treats scoring as support for clinical judgment.

Inputs used

  • Final integer from the classic 1-64 Waterlow version

Clinical interpretation

Reassess when clinical status changes and inspect the skin. Do not infer that a lower score makes prevention unnecessary. Combine the score with clinical judgment and the local prevention pathway. This page does not prescribe equipment or a turning interval.

Worked example

A record showing 0 may be a default or incomplete assessment rather than a valid classic total. It is rejected. A change from 14 to 17 is three points, not a measured three-percent increase in injury probability.

Limitations and safety notes

No universal risk-free category, equipment choice or repositioning interval is inferred. Source-card commercial permissions were not established here. The original website was not accessible in this check; AHRQ supports the entry range, not a claim of rights clearance.

Frequently asked questions

Does a score diagnose a pressure injury?

No. It summarizes risk factors; assessment of the skin and underlying clinical situation is separate.

References

  • https://effectivehealthcare.ahrq.gov/sites/default/files/pdf/pressure-ulcer-prevention_research.pdf
  • https://www.nice.org.uk/guidance/cg179/chapter/Recommendations

Editorial review and citation methodology

Maintained by the Quick Medical Calculator Editorial Team. Content record date: September 9, 2026. A content date is not evidence of independent clinical review. Individual clinical sign-off is not recorded on this page.

  • Prefer original validation studies for scoring systems and prediction tools.
  • Use current specialty society guidance, transplant allocation policy, public health guidance, or regulator resources when they govern clinical use.
  • Include limitations and safety notes when a calculator is population-specific, context-dependent, or unsuitable as a standalone decision tool.

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