How does agonal rhythm differ from asystole on an EKG?

Agonal rhythm and asystole are both critical conditions that indicate severe heart dysfunction but are distinctly different in their presentation on an EKG. Agonal rhythm is characterized by a very slow heart rate, typically less than 20 beats per minute, and presents on the EKG as sporadic, disorganized electrical activity. This rhythm may still have some electrical impulses, which can sometimes lead to minimal mechanical activity of the heart.

In contrast, asystole is described as a flat line on an EKG, indicating the complete absence of electrical activity in the heart. This results in no contractions and no heart rate, leading to total cessation of cardiac output. Understanding these differences is crucial for diagnosing and managing cardiac emergencies effectively.

Recognizing the distinctions helps in providing appropriate interventions. While both conditions can be life-threatening, the presence of an agonal rhythm indicates that there may still be some electrical activity that could be responded to, whereas asystole requires immediate advanced life support interventions without delay.