What is the first step to assess and treat a patient presenting with symptomatic bradycardia?

When managing a patient with symptomatic bradycardia, obtaining a 12-lead ECG is crucial as the first step in assessment and treatment. This diagnostic tool helps to evaluate the heart’s electrical activity, identify any underlying rhythm abnormalities, and determine the exact nature of the bradycardia. Understanding the specific rhythm can guide appropriate management strategies, including whether medications or interventions are needed.

It's essential to recognize that while establishing intravenous access, administering oxygen, and obtaining blood samples are important components of the overall care process, understanding the rhythm and determining the immediate risks and required interventions come first. The ECG provides critical information that influences the subsequent treatment plan, including whether pacing is necessary, or if other immediate actions are required. Hence, starting with a 12-lead ECG sets the foundation for informed decision-making in the management of symptomatic bradycardia.