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Complete the following ECG criteria for a sinus arrhythmia: Rhythm   Rate   P waves   PR interval   QRS duration  

Identify the following rhythm: ____________________

List three significant signs and/or symptoms that, if observed with a sinus bradycardia, would require management of this dysrhythmia.

Identify the following rhythm (lead I): ____________________

Complete the following ECG criteria for a sinoatrial (SA) block: Rhythm   Rate   P waves   PR interval   QRS duration  

The point where the QRS complex and the ST segment meet is called the ST junction or J-point.

List the FOUR major electrolytes that influence cardiac function.

Which of the following correctly reflects examples of ectopic (latent) pacemakers?

In most ECG leads, a normal Q wave is less than 0.04 second in duration and less than one third the amplitude of the R wave in that lead.

The absolute refractory period begins with the onset of the _____ and terminates _____.