Emergency

AVPU Scale

Level-of-Consciousness Scale

1 What is the AVPU Scale?

The AVPU Scale is a quick neurological assessment tool for grading a patient's level of consciousness across four levels: Alert, Voice, Pain, and Unresponsive. Per the app's own description, it is a simplification of the Glasgow Coma Scale that still assesses eye, voice, and motor responses, and clinicians are directed to work from best (Alert) to worst (Unresponsive) to avoid unnecessary stimulation of an already-conscious patient. The tool includes both adult and pediatric-specific behavioral descriptions for each level, along with a rough AVPU-to-GCS mapping and an airway-risk pearl for the Pain and Unresponsive levels.

2 When to use it

  • Rapidly grading level of consciousness during a primary survey or triage, especially when a full GCS is impractical
  • Distinguishing pediatric-specific responsiveness cues, such as response to name being called, from adult behavioral descriptors
  • Screening for whether a patient's airway may be at risk based on their responsiveness level
  • Communicating a patient's neurological status concisely between clinicians during a handoff or resuscitation
  • Deciding whether a more detailed Glasgow Coma Scale assessment is warranted

3 Formula & method

"The AVPU scale is a system where you can measure and record a patient's responsiveness to indicate their level of consciousness. It is a simplification of the Glasgow Coma Scale, which assesses a patient response in three measures: eyes, voice, and motor skills. The AVPU scale should be assessed during these three identifiable traits, looking for the best response for each. It has four possible outcomes for recording and the nurse should always work from best (A) to worst (U) to avoid unnecessary tests on patients who are clearly conscious. On the other hand, it should not be used for long-term follow up of neurological status." (quoted verbatim from the source screen)
  • APLS 6th edition
  • BMJ Best Practice paediatric trauma pathway

4 Frequently asked questions

What do the four AVPU levels stand for?

Alert, Voice, Pain, and Unresponsive — assessed from best (Alert) to worst (Unresponsive).

How is AVPU different from the Glasgow Coma Scale?

Per the guide, AVPU is a simplification of the GCS that still assesses eye, voice, and motor responses, but with only four possible outcomes instead of a numeric score.

Should AVPU be used to track a patient's neurological status over time?

No — the guide explicitly states it "should not be used for long-term follow up of neurological status."

How does AVPU relate to intubation decisions?

A pearl in the guide notes that any AVPU level worse than Voice (i.e., Pain or Unresponsive) means the patient cannot reliably protect their airway, and clinicians should prepare for intubation.

Is there a rough way to map AVPU to a GCS score?

Yes — the guide provides an approximate mapping (Alert ≈ GCS 14–15, Voice ≈ GCS 12–13, Pain ≈ GCS 8, Unresponsive ≈ GCS ≤ 6), explicitly labelled as a research add-on rather than a precise conversion.

For qualified clinicians. This page and the PediAid app are a clinical aid only. Calculations and reference data must be verified against the patient's clinical context, the source guideline and your local protocols before any treatment decision is made.