Browse the corpus

Walk the Even Hospital Database by book and chapter — the raw source passages that ground Ask, DDx, and the rest.

1 passage

contentuptodate· Content· item f9_56_10121

©2013 UpToDate ® Print Email Normal neonatal ECG Electrocardiogram from a healthy neonate resembles right ventricular hypertrophy in adults (tall right precordial R waves with right axis deviation). Right ventricular preponderance in neonates is a physiologic finding related to fetal circulatory dynamics; resting sinus tachycardia is expected. The very narrow QRS (only about 0.05 sec) is a major clue in differentiating this pattern from a pathologic one in adults. Courtesy of Ary Goldberger, MD.