Q Wave Abnormality by ECG Finding

**Semantic type:** Finding

**Definition:** An electrocardiographic finding for the Q wave that is atypical for the duration (greater than or equal to 0.03 seconds) and amplitude (greater than or equal to 1 mm (0.1 mV)) in at least 2 contiguous leads.

**Synonyms:** - Presence of abnormal Q waves - Q Wave Abnormality - Q Wave Abnormality by EKG Finding