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Table 2 The Critical-Care Pain Observation Tool (CPOT)

From: Effect of remimazolam besylate compared with propofol on the incidence of delirium after cardiac surgery: study protocol for a randomized trial

Indicator

Description

Score (total score 0–8)

Facial expressions

No muscle tension observed

Relaxed, neutral

0

Presence of frowning, brow lowering, orbit tightening, and levator contraction or any other change (e.g., opening eyes or tearing during nociceptive procedures)

Tense

1

All previous facial movements plus eyelid tightly closed (the patient may present with mouth open or biting the endotracheal tube)

Grimacing

2

Body movements

Does not move at all (does not necessarily mean absence of pain) or normal position (movements not aimed toward the pain site or not made for the purpose of protection)

Absence of movements or normal position

0

Slow, cautious movements, touching or rubbing the pain site, seeking attention through movements

Protection

1

Pulling tube, attempting to sit up, moving limbs/thrashing, not following commands, striking at staff, trying to climb out of bed

Restlessness/agitation

2

Muscle tension

No resistance to passive movements

Relaxed

0

Resistance to passive movements

Tense, rigid

1

Strong resistance to passive movements or incapacity to complete them

Very tense or rigid

2

Compliance with the ventilator (intubated patients)

OR

Alarms not activated, easy ventilation

Tolerating ventilator or movement

0

Coughing, alarms may be activated but stop spontaneously

Coughing but tolerating

1

Asynchrony: blocking ventilation, alarms frequently activated

Fighting ventilator

2

Vocalization (extubated patients)

Talking in normal tone or no sound

Talking in normal tone or no sound

0

Sighing, moaning

Sighing, moaning

1

Crying out, sobbing

Crying out, sobbing

2