In 2019, ENA acquired ESI, which is the leading triage resource relied upon by nurses to assess patient acuity based on their presentation in the ED and the expected level of care the patient will require.  Below are helpful links and resources to help you navigate what you are looking for during this transition of products and information from ESI to ENA.

You can now purchase ESI courses directly through us! The relaunched version of the courses includes an exciting new design and features enhancements that improve learner outcomes. Please note, the content of the course was not changed or updated with the relaunch. 

These courses help triage nurses to further understand the ESI program and better identify patients who should be seen first while prioritizing the care of patients with less emergent conditions through engaging, interactive modules that can be completed in the comfort of your own home or office.

If you previously purchased a course(s) through, you will need to repurchase the course(s) through ENA. 

For group pricing click here


Adult/Pediatric Course

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Adult/Pediatric Spanish Course

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Pediatric Course

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About ESI

The number of Emergency Department visits is continuing to rise and inefficient patient flow seems to come with the territory. But it doesn't have to. 

The Emergency Severity Index (ESI) is a five-level, emergency department triage program. 

This powerful program successfully and efficiently enhances patient flow and safety at triage, while also providing case-mix data to support emergency department operational decisions, quality initiatives and clinical research, helping to increase Emergency Department efficiency. ESI triage is based on the acuity of patients' health care challenges and the number of resources their care is anticipated to require.


Didn't find what you were looking for above? Check out our FAQ PDF by clicking the button below.  We will continue to update this document with new questions and answers during this transition. 

esi faq

ESI Resources and Products

Click here to download the free ESI Handbook

Click here to access the free ESI Training Video

Click here to access the free ESI Practice Case Videos

Click here to purchase ESI pocket cards, badge cards and posters through our partner, Scrub Pocket