title: Second-degree atrioventricular block.
authors.forename: Beth
authors.initials: B
authors.lastname: Palmer
authors.forename: Karen
authors.initials: K
authors.lastname: Carroll
mesh_terms: D054537:Atrioventricular Block / Q000175:diagnosis*; D004562:Electrocardiography / Q000379:methods*; D006339:Heart Rate; D006801:Humans; D017410:Practice Guidelines as Topic