SymptomDx is an educational tool for medical professionals. It does not replace clinical judgment. Verify all clinical data and drug dosages with authoritative sources.

Last Reviewed: January 15, 2026 by SymptomDX Medical Team

SymptomDx is an educational tool for medical professionals. It does not replace clinical judgment. Verify all clinical data and drug dosages with authoritative sources.

← Management Protocols

Home Management ProtocolsSupraventricular tachycardia

Supraventricular tachycardia

Clinical Assessment Checklist

Browse categories and answer follow-up questions to refine your symptom profile.

Immediate priorities

Initial stabilization

Airway and breathing support as needed

Supplemental oxygen for hypoxemia

Bag valve mask ventilation if respiratory failure

Circulation and perfusion assessment

If hypotension, shock signs, ischemic chest discomfort, acute heart failure, altered mental status, immediate synchronized cardioversion

If cardiac arrest, ACLS cardiac arrest algorithm

Monitoring and access

Cardiac monitor with defibrillator pads in place

12 lead ECG early and after conversion

IV access x2 or intraosseous if needed

Focused bedside diagnostics

Point of care glucose

Electrolyte disturbance suspicion

Rhythm confirmation

Narrow complex regular tachycardia framework

Typical SVT rate 150 to 250

P waves absent or retrograde

Wide complex tachycardia safety

If uncertain, treat as ventricular tachycardia until proven otherwise

Regular monomorphic wide complex may be adenosine responsive and diagnostic

Key decision points

Unstable versus stable classification

Unstable features

Hypotension attributable to tachycardia

Ongoing ischemic chest discomfort

Acute pulmonary edema

Altered mental status

Regular versus irregular tachycardia

Irregular narrow complex suggests atrial fibrillation or flutter with variable block

Irregular wide complex suggests preexcited atrial fibrillation or polymorphic ventricular tachycardia

Consult and escalation triggers

Cardiology or electrophysiology

Recurrent SVT despite ED therapy

Suspected accessory pathway

Preexcitation on baseline ECG

ICU or monitored bed

Hemodynamic instability

Need for continuous infusion

Significant comorbidity or complications

Medical Disclaimer

SymptomDx is an educational tool for medical professionals. It does not replace clinical judgment. Verify all clinical data and drug dosages with authoritative sources.

Last Reviewed: January 15, 2026 by SymptomDX Medical Team

SymptomDx is an educational tool for medical professionals. It does not replace clinical judgment. Verify all clinical data and drug dosages with authoritative sources.

← Management Protocols

Home Management ProtocolsSupraventricular tachycardia