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Critical-Care Pain Observation Tool (CPOT)

The Critical-Care Pain Observation Tool (CPOT) rates pain from behavior in ICU adults who cannot self-report. You score four behaviors from 0 to 2 for a total of 0 to 8. A higher score means more pain, and a score above 2 suggests the patient is in pain.

0–2 Pain unlikely3–8 Pain likely
Calculator · 4 questions

Supports, never replaces, clinical judgment and your facility's protocols. · Reviewed September 30, 2026 by the editorial team under our editorial policy · Gélinas, Fillion, Puntillo, Viens & Fortier, 2006 (American Journal of Critical Care)

What it measures

CPOT measures pain through what you can observe at the bedside: facial expression, body movements, muscle tension, and either compliance with the ventilator (intubated) or vocalization (extubated). It was built for critically ill adults who are sedated, intubated or otherwise unable to report pain. A structured score helps you decide when to act, and repeating it after an intervention shows whether pain control worked. It is one of the two behavioral tools the SCCM PADIS guideline recommends for ICU adults.

Used for: Critically ill adults, intubated or not, who cannot self-report pain but have observable motor function. Use self-report whenever the patient can give it.

Critical-Care Pain Observation Tool (CPOT) interpretation

ScoreResultWhat it means
0–2Pain unlikelyBehaviors do not suggest significant pain. Keep reassessing on your unit's schedule, before and during procedures, and after any change.
3–8Pain likelyA score above 2 suggests pain. Look for the source, treat per your pain protocol or notify the provider, and reassess CPOT after the intervention to confirm the effect.

Versions and other cut-offs: The >2 cut-off comes from Gélinas et al. 2009, mainly during painful procedures such as turning (sensitivity 86%, specificity 78%); the same study found >1 at rest. Some units use 3 or more, which is the same threshold. CPOT-Neuro is an adapted version for brain-injured patients, and the Behavioral Pain Scale (BPS) is the main alternative tool.

Critical-Care Pain Observation Tool (CPOT) chart and printable PDF

Critical-Care Pain Observation Tool (CPOT) chart with items, points and interpretation
Critical-Care Pain Observation Tool (CPOT): items, points and score bands. Download the Critical-Care Pain Observation Tool (CPOT) PDF
See every item and its points as a table
ItemOptionPoints
Facial expressionRelaxed, neutral: No muscle tension observed0
Tense: Frowning, brow lowering, orbit tightening, levator contraction, or other change such as opening eyes or tearing during procedures1
Grimacing: All of the above plus eyelids tightly closed; may have mouth open or bite the endotracheal tube2
Body movementsAbsence of movements: Does not move at all, or normal position with movements not aimed at the pain site0
Protection: Slow, cautious movements, touching or rubbing the pain site, seeking attention through movements1
Restlessness/agitation: Pulling tube, trying to sit up, thrashing, not following commands, striking at staff, trying to climb out of bed2
Muscle tensionRelaxed: No resistance to passive movements0
Tense, rigid: Resistance to passive movements1
Very tense or rigid: Strong resistance to passive movements or unable to complete them2
Compliance with the ventilator (intubated) OR vocalization (extubated)Tolerating or normal speech: Alarms not activated, easy ventilation; or talking in normal tone or no sound0
Coughing or moaning: Coughing, alarms may sound but stop on their own; or sighing, moaning1
Fighting vent or crying out: Asynchrony, blocking ventilation, alarms frequently activated; or crying out, sobbing2

When to use it

How to score it step by step

  1. Ask the patient to self-report first; use CPOT only if they cannot.
  2. Observe the patient at rest for about 1 minute and score face, body movements and ventilator compliance or vocalization.
  3. Assess muscle tension with passive flexion and extension of the arm, or during turning.
  4. Add the four scores for a total from 0 to 8.
  5. Document the score, the context (rest or procedure) and any intervention.
  6. Reassess after treatment within the time your pain policy sets and compare scores.

Common mistakes

Example case

Patient. Mr. Johnson, 67 years old, intubated on day 1 after cardiac surgery, assessed during turning.

Score: 4. A CPOT of 4 is above the cut-off of 2 and suggests the patient is in pain during turning.

Nursing actions:

Frequently asked questions

What is a normal CPOT score and what score means pain?

Scores of 0 to 2 suggest pain is unlikely. A score above 2 (3 or more) suggests pain and should prompt assessment and treatment per your protocol.

What does CPOT stand for?

Critical-Care Pain Observation Tool. It was developed by Céline Gélinas and colleagues in 2006 for ICU adults who cannot report their pain.

Do you score both ventilator compliance and vocalization?

No. Use ventilator compliance for intubated patients and vocalization for extubated patients. The total always stays 0 to 8.

How do you assess muscle tension on the CPOT?

Flex and extend the patient's arm at the elbow while they are at rest, or feel for resistance while turning them. Strong resistance or being unable to complete the movement scores 2.

What is the difference between CPOT and BPS?

Both are behavioral pain tools recommended for ICU adults. BPS scores face, upper limbs and ventilator compliance from 3 to 12. CPOT adds muscle tension, covers extubated patients with vocalization, and scores 0 to 8.

Can you use CPOT for a patient on a paralytic?

No. Neuromuscular blockade removes the behaviors CPOT relies on. Follow your unit's approach for pain management during paralysis.

Related scales and guides

Pain Scale (0-10 Numeric Rating Scale)pain scaleFLACC Scaleflacc scaleWong-Baker FACES Pain Rating ScaleGuide

All scales:

Glasgow Coma ScaleNIH Stroke Scale (NIHSS)Richmond Agitation-Sedation Scale (RASS)Muscle Strength Scale (MRC 0-5)Braden ScaleNorton ScaleMorse Fall ScaleBarthel IndexModified Early Warning Score (MEWS)Pediatric Early Warning Score (PEWS)qSOFA ScorePitting Edema ScaleCIWA-ArClinical Opiate Withdrawal Scale (COWS)Apgar ScoreNew Ballard ScoreBishop ScoreEdinburgh Postnatal Depression Scale (EPDS)Aldrete ScoreCaprini Risk Assessment Model (Caprini Score)

Sources: Gélinas et al. Validation of the CPOT in adult patients, Am J Crit Care 2006 (PubMed) · Gélinas et al. Sensitivity and specificity of the CPOT, J Pain Symptom Manage 2009 · CPOT scoring form and behavior descriptions (adapted from Gélinas 2006) · LHSC: Critical-Care Pain Observation Tool form · Health Assessment: Pain Assessment in Critical Care (TMU Pressbooks). Explanations and example case written by our editorial team. Reviewed September 30, 2026.