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Managing Tachycardia

This clinical guideline outlines the systematic assessment and treatment of narrow-complex tachycardia in adults, prioritizing the patient’s hemodynamic stability over the specific heart rate. The protocol distinguishes between stable patients, who may only require observation or non-invasive maneuvers, and unstable patients exhibiting signs of shock or ischemia who necessitate immediate electrical or pharmacological intervention. It categorizes arrhythmias into regular and irregular rhythms, providing specific medication pathways like adenosine or calcium channel blockers while highlighting critical exceptions, such as the contraindication of certain blockers in cases of Wolff-Parkinson-White syndrome. Ultimately, the text serves as a diagnostic framework to help clinicians identify whether a rapid heart rate is a primary cardiac event or a secondary reaction to an underlying systemic cause like infection or dehydration.