What is the first step in treating unstable bradycardia in adults?

The correct approach to treating unstable bradycardia in adults begins with obtaining a 12-lead ECG to rule out myocardial infarction. This step is essential because it helps identify any underlying cardiac issues that may be contributing to the bradycardia. The ECG can reveal critical information such as ischemic changes or arrhythmias that may require immediate intervention and influence further treatment decisions.

In emergency situations, understanding the patient's cardiac status through an ECG is vital before administering medications or beginning invasive procedures. It allows healthcare providers to make informed decisions based on the specific cardiac condition presented. For example, if the ECG indicates a myocardial infarction, the treatment plan would differ significantly from bradycardia caused by other factors.

Additionally, establishing the patient’s hemodynamic stability is crucial; if the bradycardia is unstable and the patient is symptomatic, then immediate treatment might be necessary, but understanding the underlying cause through an ECG enhances the accuracy of subsequent interventions. By prioritizing this step, you ensure a comprehensive assessment of the situation before proceeding with treatments like atropine or transcutaneous pacing.