ICU Topics > Activity Decision Framework

Activity Decision Framework

Determining whether a patient is appropriate for therapy is a daily clinical decision — not a one-time check. The same patient who is appropriate on Monday may need to be deferred on Tuesday. Appropriateness is dynamic, influenced by trends in vitals, lab values, sedation, vasopressor use, and the patient's response during the session itself. The framework below organizes that decision into five tiers: GO, MODIFY, YIELD, DEFER, and STOP.

These are guidelines, not algorithms — clinical judgment and communication with the bedside nurse and team remain essential at every level. For detailed thresholds and specific considerations by condition, see Considerations & Contraindications.

Activity Decision Framework

Decision Meaning General Indicators
GO Safe to proceed with in-bed or out-of-bed activity MAP 65–110 mmHg (stable) · HR 40–130 bpm, no new arrhythmia · RR 5–40 · SpO2 ≥88% · FiO2 ≤60% · PEEP ≤10 cmH2O · RASS −2 to +1 · No vasopressors or single stable pressor (no titration in past 2 hrs) · Activity order in place · No new neurological changes
MODIFY In-bed activity appropriate; defer or scale back out-of-bed RASS −3 (may tolerate passive/PROM in-bed) · Single vasopressor, stable dose · FiO2 60–80% · PEEP 10–14 cmH2O · Femoral vascular access (in-bed ROM only — no sit, stand, or ambulate) · Significant fatigue or early intolerance with upright positioning · Stable fracture awaiting fixation (bed-level only)
YIELD Do not proceed. Discuss with the ICU team first Single vasopressor with active titration, OR multiple vasoactive medications · ICP 10–20 at rest · Active vent adjustments within past hour · SBP <80 mmHg · MAP <65 mmHg · HR <50 or >110 at rest · PEEP 10–14 at rest · RR >30 at rest · Unclear clinical picture requiring team input
DEFER Hard stop. Do not initiate activity today MAP >110 or <65 mmHg · SBP >200 or <90 mmHg · Symptomatic drop in MAP (dizziness, presyncope) · Vasopressor dose increased in past 2 hours · HR >130 or <40 bpm for ≥5 min · Unstable arrhythmia · RR >40 or <5 for ≥5 min · SpO2 unable to maintain >90% with activity or <88% at rest · FiO2 >80% · PEEP >14 cmH2O · Inadequately secured or unstable airway · ICP >20 mmHg · RASS +2 to +4 (agitation) · Active or new bleeding requiring workup · Open chest or abdomen · Unstable fracture · Acute neurological event (new stroke, SAH, ICH, active seizure) · Medically paralyzed · Bed rest order in place · Cardiac arrest within previous 24 hours · Myocardial ischemia (chest pain, EKG changes) · Emergent surgical intervention pending
STOP Suspend the session now. Allow 5 minutes to recover HR <40 or >130 bpm · HR >20% above patient’s pre-activity baseline · SBP >180 mmHg · MAP <60–65 mmHg · Sustained SpO2 <85% · RR <5 or >40 · Visible use of accessory muscles · Acute diaphoresis · Marked ventilator dyssynchrony or patient-ventilator asynchrony · New arrhythmia · Patient distress (verbal or nonverbal) · Accidental ETT removal · Fall to knees

Brummel et al., 2012; Hodgson et al., 2014; Linke et al., 2020; Mendez-Tellez & Needham, 2012; Rawal & Bakhru, 2024

For the STOP tier: monitor for up to 5 minutes for resolution of symptoms. Decision to resume is at the therapist’s discretion.

Clinical Reasoning Principle

  • These criteria are a starting point, not a finish line. Always assess in context.
  • Trends matter more than single numbers. A MAP of 66 that has been dropping for 2 hours is not the same as a MAP of 66 that has been stable all day.
  • A single red criterion overrides all green ones.
  • When in doubt, yield. Consult the team, document your reasoning, and reassess.
  • The goal is to maximize activity safely — not to find reasons to exclude patients.

Hodgson et al., 2014

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For condition-specific considerations — DVT/PE, anesthesia, sedation, devices — see Considerations & Contraindications

References

Hodgson, C. L., Stiller, K., Needham, D. M., Tipping, C. J., Harrold, M., Baldwin, C. E., ... & Webb, S. A. (2014). Expert consensus and recommendations on safety criteria for active mobilization of mechanically ventilated critically ill adults. Critical Care, 18(6), 658. https://doi.org/10.1186/s13054-014-0658-y

Linke, C. A., Chapman, L. B., Berger, L. J., Kelly, T. L., Korpela, C. A., & Petty, M. G. (2020). Early mobilization in the ICU: A collaborative, integrated approach. Critical Care Explorations, 2(4), e0090. https://doi.org/10.1097/CCE.0000000000000090

Rawal, H., & Bakhru, R. N. (2024). Early mobilization in the ICU. CHEST Critical Care, 2(1), 100038. https://doi.org/10.1016/j.chstcc.2023.100038