Chest pain and dyspnea risk stratification

Primary-care risk framing for chest symptoms to support safe triage and disposition.

Last reviewed February 7, 2026

Red flags

Ongoing ischemic chest pain, severe hypoxia, syncope, or hemodynamic compromise.
Neurologic deficit, severe respiratory distress, or rapidly worsening symptoms.
New high-risk ECG features or concern for pulmonary embolism/aortic catastrophe.

Baseline assessment

Characterize symptom timing, exertional pattern, associated features, and risk-factor profile.
Check hemodynamic stability, oxygenation context, and immediate exam concerns.
Determine whether presentation is evolving or currently stable.

Initial workup

Obtain focused cardiopulmonary exam findings and baseline ECG when available.
PERC is only for clinician-assessed low PE probability with every criterion negative. HEART requires ECG and troponin in an appropriate acute-care pathway; neither an office score nor a single normal ECG excludes ACS.
Capture recent medication exposures and comorbid contributors (asthma, COPD, heart failure, anxiety).

First-line management

Suspected ACS or another dangerous acute cause requires emergency assessment even with stable vital signs; do not delay transfer for office investigations.
Use outpatient workup only after dangerous acute causes have been assessed and a stable, appropriate outpatient pathway is established; assign responsibility for tests and reassessment.
Document rationale for disposition and safety-net instructions in plain language.

Referral triggers

Persistent diagnostic uncertainty after initial risk-stratified assessment.
Recurrent or progressive symptoms despite first-line outpatient approach.
Need for rapid-access cardiology, respirology, or internal medicine input.

References

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