Quiz: Spot the Abnormal Beat

13 years • Female • Sent for pre-op evaluation

8 years • Female

11 years • Male

13 years • Female • Dyspneic inpatient with an irregular heart rhythm noted

Male • Not on any anti-arrhythmic medication at the time of this recording

10 years • Female

4 years • Male (neutered) • Grade I-II/VI heart murmur and an irregularly irregular rhythm noted on auscultation; asymptomatic with clear lungs

10 years • Female • Presented for evaluation of a small bleeding dermal lump; pulses were noted to be irregular on exam

12 years • Male • Presented with inspiratory effort and retching like trying to vomit for a few days; heart rate was irregular and rapid on exam, with moderate pleural and pericardial effusion noted on imaging

5 years • Female