Degree Options and Education. Students interested in a career in speech therapy should earn a speech therapist degree, bachelorâs degree in communication sciences and disorders or a related major. You will need at least a bachelorâs degree plus your teaching certificate in order to practice speech therapy within the school system.
I think hypokalemia is incorrectly listed as one of the causes of first degree AV block. My ECG handbook says it is hyperkalemia that can cause first degree AV block (and some internet sources confirm this).
In high-grade 2nd-degree AV block, every 2nd (or more) P wave is blocked (see Figure: Second-degree atrioventricular block (high grade). Second-degree atrioventricular block (high grade). The distinction between Mobitz type I and Mobitz type II block is difficult to make because 2 P waves are never conducted in a row. Risk of complete AV block is difficult to predict, and a pacemaker is indicated.