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Morse Fall Scale Calculator

Calculate fall risk using the Morse Fall Scale by scoring six fall risk factors for inpatient fall prevention.

About this calculator

This calculator implements the Morse Fall Scale, a widely used inpatient fall-risk screening tool that nurse researcher Janice Morse and colleagues developed and published in 1989, built from six weighted risk factors rather than a simple 1-4 rubric per item. Each factor contributes a specific point value when present: History of Falling adds 25 points, Secondary Diagnosis adds 15, Ambulatory Aid adds 15 (crutches/cane/walker) or 30 (furniture for support), IV/Heparin Lock adds 20, Gait adds 10 (weak) or 20 (impaired), and Mental Status adds 15 when the patient overestimates their own abilities or forgets limitations. Total Morse Score is the sum of whichever point values apply, out of a maximum possible 125.

Unlike a scale where every item carries the same weight, the six Morse factors are NOT equal -- Ambulatory Aid alone can swing the total by up to 30 points, more than any other single factor, which means a patient's ambulatory-aid status has the largest single effect on the calculated score of anything the scale measures. The calculator classifies Total Morse Score into three risk bands: 0-24 = Low risk, 25-50 = Moderate risk, and above 50 = High risk, a commonly used cutoff convention for the scale (some institutions apply a slightly different cutoff, so always confirm against your facility's own Morse Fall Scale policy). Morse scoring is intended to be repeated regularly -- typically each shift, after any fall, and with any significant change in condition -- since fall risk factors like gait and mental status can change quickly during a hospital stay.

Inputs

Results

Total Morse Score

0 / 125

Fall Risk Level

1 (1=Low 0-24, 2=Moderate 25-50, 3=High >50)

Figures current as of 1989. Source: Morse JM, Black C, Oberle K, Donahue P. A prospective study to identify the fall-prone patient. Soc Sci Med. 1989;28(1):81-86.

How to Use This Calculator
  1. Score each Morse Fall Scale item: history of falling, secondary diagnosis, ambulatory aid, IV access, gait, and mental status.
  2. Each item has a weighted numerical score — refer to the scale values in the help text.
  3. Read the total Morse score: 0-24 = low risk, 25-50 = moderate risk, above 50 = high risk.
  4. Implement fall precautions based on the risk level: standard, moderate, or high-risk protocols.
  5. Reassess the score with each shift change, after a fall, or with a significant change in condition.

What each input means

History of Falling
Fall history in the past 3 months.
Secondary Diagnosis
Whether patient has more than one medical diagnosis.
Ambulatory Aid
Type of ambulatory aid used.
IV/Heparin Lock
Whether patient has IV or heparin lock.
Gait
Patient gait assessment.
Mental Status
Patient awareness of own limitations.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    History of Falling = 0, Secondary Diagnosis = 0, Ambulatory Aid = 0, IV/Heparin Lock = 0 = 6 input(s) provided
  2. Calculate Total Morse Score
    Total Morse Score
    0 = 0
  3. Calculate Fall Risk Level
    Fall Risk Level
    1 = 1

Figures and sources

Engine last updated . Checked against 3 independently-derived tests — how we verify calculators. Built by Paul Gunder, a software engineer, not a licensed financial, medical, or legal professional.

Frequently Asked Questions

Which Morse Fall Scale factor has the biggest effect on the total score?

Ambulatory Aid. It can add up to 30 points (when the patient uses furniture for support) -- more than any of the other five factors individually, since History of Falling tops out at 25, and Secondary Diagnosis and Mental Status each top out at 15. A change in a patient's ambulatory-aid status has the largest possible swing on Total Morse Score of anything the scale measures.

Do all six Morse Fall Scale factors carry the same point value?

No -- the Morse Fall Scale is intentionally weighted, not a uniform 1-4 rubric. History of Falling contributes 25 points, Secondary Diagnosis and Mental Status each contribute 15, IV/Heparin Lock contributes 20, Gait contributes 10 or 20, and Ambulatory Aid contributes 15 or 30 -- so factors are not interchangeable in how much they move the total.

What's the difference between the Low, Moderate, and High Morse risk bands?

This calculator uses 0-24 for Low risk, 25-50 for Moderate risk, and above 50 for High risk -- a commonly used cutoff convention for the Morse Fall Scale. Some facilities apply a slightly different cutoff in their own fall-prevention policy, so always confirm the exact bands and associated interventions against your institution's protocol.

How often should the Morse Fall Scale be rescored?

Regularly, not just at admission -- common practice is scoring at admission, then reassessing every shift, after any fall, and whenever there's a significant change in the patient's condition (a new medication, a change in gait, or a change in mental status can all shift the score quickly).

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