Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
The EKG in the Patient Treated with Adenosine
Introduction
Electrocardiographic Findings:
- Decreases the automaticity of the sinus node and AV nodal conduction
- Caused by an increase in the AH interval and not by an increase in the HV interval
- Blocks occur within 20 seconds of i.v. administration
- The incidence of transient second degree AV block is high
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]