Emergency Medicine · Trauma
New Orleans Head CT Rule calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
Result
0
New Orleans head CT rule low-risk count
Interpret only within the cited source population and criteria; use alongside complete clinical assessment.
Formula inputs
- headache
- vomiting
- age gt 60
- intoxication
- deficits or amnesia
- traumatic mechanism
Primary source
Haydel MJ et al. Indications for computed tomography in patients with minor head injury. N Engl J Med. DOI: 10.1056/NEJM200007133430201. PMID: 10891517. Scope: New Orleans criteria count headache, vomiting, age >60, intoxication, persistent anterograde amnesia or focal deficit, and trauma mechanism; zero indicates low-risk minor head injury in derivation cohort. (2000)
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