CAM-ICU Calculator

CAM-ICU Calculator for Critical Care. Use CAM-ICU as a structured delirium screen in critically ill patients who can be assessed.

How this calculator works

CAM-ICU screens for delirium using acute mental status change or fluctuating course, inattention, altered level of consciousness, and disorganized thinking.

Inputs used

  • Mental status change
  • Inattention
  • Level of consciousness
  • Disorganized thinking

Clinical interpretation

Use CAM-ICU as a structured delirium screen in critically ill patients who can be assessed.

Limitations and safety notes

Deep sedation, coma, severe neurologic injury, language barriers, and assessor training affect reliability.

References

  • Ely EW, Inouye SK, Bernard GR, et al. Delirium in mechanically ventilated patients. JAMA. 2001.
  • SCCM PADIS guideline resources for ICU delirium assessment.

Editorial review and citation methodology

Reviewed by the Quick Medical Calculator Editorial Team. Last reviewed: July 1, 2026. The review checks calculator inputs, intended population, interpretation, limitations, and source alignment.

  • 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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