label: Undetermined Supraventricular Rhythm by ECG Finding
label_lc: undetermined supraventricular rhythm by ecg finding
description: "An electrocardiographic finding of a rhythm that cannot be determined from the EKG, but that clearly does not originate in the ventricles or His Purkinje system. Typically, the QRS complexes are narrow, but aberration or preexcitation may be present."