| Title | A very subtle 1st degree AV block |
| Creator | Yanowitz, Frank G. |
| Contributor | Frank G. Yanowitz, MD, Professor of Cardiology, University of Utah School of Medicine |
| Date | 1997-01-01 |
| Description | Where are the P waves??? They are hiding in the T waves as indicated by the arrows. How do we know? The PVC unmasked the sinus P wave, and now it is seen in the pause following the PVC. The PR interval is, therefore, about 500 ms. |
| Subtype | Image |
| Format | image/png |
| Rights | http://creativecommons.org/licenses/by-nc-sa/1.0/ |
| Collection | Knowledge Weavers ECG |
| ARK | ark:/87278/s6x95b58 |
| Setname | ehsl_heal |
| ID | 870372 |
| Reference URL | https://collections.lib.utah.edu/ark:/87278/s6x95b58 |