AV Block First Degree by ECG Finding

**Semantic type:** Finding

**Definition:** An electrocardiographic finding of prolonged PR interval for a specific population. For adults one common threshold is a PR interval greater than 0.20 seconds. Note that other thresholds may be applicable. (CDISC)

**Synonyms:** - 1ST DEGREE AV BLOCK - 1st degree AV block - AV Block First Degree - AV Block First Degree by EKG Finding - First Degree AV Block - First Degree Atrioventricular Block - PR Prolongation - Prolonged AV Conduction - Prolonged PR Interval - Prolonged PR interval