RASS Scale Calculator (Richmond Agitation-Sedation)

Richmond Agitation-Sedation Scale (−5 to +4) for ICU sedation.

For educational and clinical reference. Not a substitute for medical judgment. See the medical disclaimer.
Score
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Interpretation
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References

  1. Sessler CN, Gosnell MS, Grap MJ, et al. The Richmond Agitation-Sedation Scale: validity and reliability in adult intensive care unit patients. Am J Respir Crit Care Med. 2002;166(10):1338-1344.
  2. Devlin JW, Skrobik Y, Gélinas C, et al. Clinical Practice Guidelines for the Prevention and Management of Pain, Agitation/Sedation, Delirium, Immobility, and Sleep Disruption in Adult Patients in the ICU. Crit Care Med. 2018;46(9):e825-e873.

How to use

  1. Observe the patient and select the matching RASS level.
  2. The score and interpretation update instantly.
  3. Use repeated assessments to titrate sedation toward RASS 0 to −2.

Frequently asked questions

What is RASS?

The Richmond Agitation-Sedation Scale is a 10-point scale (−5 to +4) used to assess agitation and sedation in ICU patients, especially those who are mechanically ventilated.

What RASS target is recommended?

Most guidelines target RASS 0 to −2 (calm to lightly sedated) to minimize delirium, ventilator days, and ICU length of stay.

How is RASS performed?

Observe the patient first; if not alert, speak the patient’s name; if no response, physically stimulate (shake shoulder, then rub sternum).

RASS vs Ramsay vs SAS?

RASS has higher inter-rater reliability and is now the preferred scale in most ICUs, recommended by the SCCM PADIS guidelines.

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