which is normally upright in lead II and biphasic in lead V1. Often, the P wave is inverted in lead II, if it can be seen at all. A pacemaker may be needed to relieve symptoms when no reversible ...

If no P waves can be seen and the ... Type I is deep inverted T waves in the precordial leads and type II is biphasic T waves in V1 through V3. Digoxin can cause ST depression appearing as a ...