Fatigue/weakness triage workflow

Clinical workflow for fatigue visits balancing targeted workup, red-flag detection, and follow-up reliability.

Medium-risk workflowLast reviewed September 4, 2026

AI-assisted evidence review. Clinical-owner sign-off is not recorded for this update.

Scope

Use for

Initial adult outpatient fatigue assessment when immediate instability is not present.

Not for

Distinguish tiredness or sleepiness from objective loss of muscle strength; establish onset, progression, functional impact, and vital signs.
Review sleep, mood, medications/substances, infection history, nutrition, bleeding, and systemic symptoms. Do not assume fatigue is psychological because an initial screen is positive.
Ask whether minor physical or cognitive activity causes delayed, prolonged worsening, together with unrefreshing sleep or cognitive difficulty.

Treat these as urgent. Escalate early if concern persists or follow-up is unreliable.

Sudden focal weakness, rapidly progressive weakness, respiratory difficulty, chest pain, or unstable vital signs requires emergency assessment.
Unexplained weight loss, persistent fever, bleeding, or substantial functional decline needs prompt clinical assessment, with urgency based on the findings.

Examine for the suspected cause and choose targeted tests. Persistent unexplained symptoms may warrant CBC, ferritin, renal/liver/electrolyte and thyroid assessment, glucose testing, and other investigations indicated by history/examination.
When ME/CFS is suspected, assess the full symptom pattern and exclude other explanations; fatigue alone does not establish that diagnosis.
Support sleep, nutrition, and activity within tolerance. With post-exertional symptom worsening, use individualized energy management rather than fixed activity increases or advice to push through symptoms.

Agree a review date and responsibility for test results; track both symptoms and function, and reassess sooner for deterioration.
Seek appropriate specialist advice for persistent unexplained symptoms, objective weakness, diagnostic uncertainty, or worsening disability.

Return precautions you can say as written:

“If symptoms get worse, new warning signs appear, or you cannot follow the plan from this visit, seek urgent care now.”

Point to the red flags above that apply to this patient.
Confirm follow-up timing and where to go after hours.
Attach a relevant handout to reinforce the plan.
Document disposition, rationale, unresolved uncertainty, and that precautions were understood.

Clinical owner: Family Medicine Editorial Team
Risk tier: Medium
Review cadence: Every 6 months
Last reviewed: September 4, 2026AI-assisted evidence review. Clinical-owner sign-off is not recorded for this update.
Review status: Evidence current. Next review due March 4, 2027.