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Critical CareManagement

ICU Pain Assessment and Management

ICU Pain Assessment and Management: ICU Patient - Pain Assessment → Patient Can Self-Report Pain? → Use Numeric Rating Scale (NRS) → Significant Pain Pr...

Pathway Overview

13 steps

Algorithm Steps

13 total

  1. 01Start

    ICU Patient - Pain Assessment

    Routine pain assessment for all ICU patients

  2. 02Decision

    Patient Can Self-Report Pain?

    Self-report is gold standard

  3. 03Action

    Use Numeric Rating Scale (NRS)

    0-10 scale for verbal patients

    • 0 = No pain
    • 1-3 = Mild pain
    • 4-6 = Moderate pain
    • 7-10 = Severe pain
    • Target: NRS ≤3
  4. 04Decision

    Significant Pain Present?

    NRS ≥4 or CPOT ≥3 or BPS ≥5

  5. 05Action

    Continue Monitoring

    Reassess regularly

    • Routine assessment q4h
    • Before/after procedures
    • Anticipate pain with procedures
    • Preemptive analgesia for procedures
  6. 06Outcome

    Pain Controlled

    NRS ≤3, CPOT <3, patient comfortable

  7. 07Action

    Analgesia-First Approach

    Treat pain before sedation

    • Pain is primary driver of agitation
    • Treat pain → may reduce sedation needs
    • PADIS: Analgesia-first, analgesia-based sedation
  8. 08Action

    Select Opioid Analgesic

    IV opioids first-line for ICU pain

    • Fentanyl: 25-100 mcg IV q1-2h PRN
    • - Preferred: hemodynamic instability, renal failure
    • - Continuous: 25-200 mcg/hr
    • Hydromorphone: 0.2-0.6 mg IV q2-3h
    • - Less histamine release than morphine
    • Morphine: 2-4 mg IV q2-4h
    • - Caution: renal failure (M6G accumulation)
  9. 09Action

    Consider Multimodal Analgesia

    Opioid-sparing strategies

    • Acetaminophen: 650-1000mg q6h (IV or PO)
    • - Max 3-4g/day, caution hepatic disease
    • NSAIDs: Short-term only if no CI
    • - Caution: AKI, bleeding, cardiac
    • Ketamine: Low-dose 0.1-0.5 mg/kg/hr
    • - Adjunct for refractory pain
    • Gabapentin/Pregabalin: neuropathic pain
  10. 10Action

    Reassess Pain Response

    15-30 min after intervention

    • Reassess using same scale
    • Titrate to target (NRS ≤3, CPOT <3)
    • Document response
    • Adjust regimen as needed
  11. Path rejoins step 06Shared downstream outcome
  12. 11Outcome

    Pain Refractory

    Consider pain consult, regional techniques

  13. 12Action

    Procedural Pain Management

    Anticipate and prevent procedure pain

    • Pre-procedure bolus (fentanyl 50-100 mcg)
    • Increase sedation temporarily
    • Local anesthesia when possible
    • Non-pharm: positioning, distraction
  14. Path rejoins step 10Shared downstream outcome
  15. 13Action

    Use Behavioral Pain Scale

    For patients who cannot self-report

    • CPOT (Critical-Care Pain Observation Tool)
    • BPS (Behavioral Pain Scale)
    • CPOT ≥3 or BPS ≥5 = significant pain
    • Assess q4h and PRN
    • Before/after painful procedures
  16. Path rejoins step 04Shared downstream outcome

Guideline Source

Clinical Practice Guidelines for the Prevention and Management of Pain, Agitation/Sedation, Delirium, Immobility, and Sleep Disruption in Adult Patients in the ICU

DOI: 10.1097/CCM.0000000000002375View Guideline

Clinical Safety Information

Clinical Decision Support — Not a Substitute for Clinical Judgment

Individual patient factors may require deviation from these recommendations.

Known Limitations

  • Pain assessment challenging in sedated/intubated patients
  • Behavioral pain scales require training
  • Opioid dosing varies with renal/hepatic function
  • Does not address chronic pain management
  • Multimodal analgesia availability varies

Contraindicated Populations

pediatric

Applicable Regions

USEUGlobal

Global: PADIS guidelines widely adopted

Version 1Next review: 2028-01-01

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Frequently Asked Questions

What is the ICU Pain Assessment and Management?

The ICU Pain Assessment and Management is a management clinical algorithm for Critical Care. It provides a structured decision tree to guide clinical decision-making, based on Clinical Practice Guidelines for the Prevention and Management of Pain, Agitation/Sedation, Delirium, Immobility, and Sleep Disruption in Adult Patients in the ICU.

What guideline is the ICU Pain Assessment and Management based on?

This algorithm is based on Clinical Practice Guidelines for the Prevention and Management of Pain, Agitation/Sedation, Delirium, Immobility, and Sleep Disruption in Adult Patients in the ICU (DOI: 10.1097/CCM.0000000000002375).

What are the limitations of the ICU Pain Assessment and Management?

Known limitations include: Pain assessment challenging in sedated/intubated patients; Behavioral pain scales require training; Opioid dosing varies with renal/hepatic function; Does not address chronic pain management; Multimodal analgesia availability varies. Individual patient factors may require deviation from these recommendations.

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