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Cardiology

QuestionAnswer
Rules of First Degree Heart Block Regularity: depends on underlining wear them Rate: depends on underlining rhythm P wave: upright and uniform each p wave will be followed by a QRS complex. PRI: greater than 0.20 seconds constant across the strip QRS: less than 0.12 seconds.
Type II second-degree heart block Regularity: R-R interval can be regular or irregular; P-P interval is regular Rate: bradycardia range (<60 bpm); can be 1/2 to 1/3 the normal rate. P wave: upright and uniform; more than one p wave for every QRS complex PRI: always constant across the st
Type I Second-degree heart block Regularity: irregular in a pattern of grouped beating Rate: usually slightly slower than normal P wave: upright and uniform; some P waves are not followed by QRS complexes PRI; progressively lengthens until one P wave is blocked. QRS: <0.12 second.
Third-degree Heart block Regularity: regular Rate: AR- 60-100bpm; VR- 40-60 P wave: upright and uniform; more P to QRS PRI: no relationship between P and QRS complexes. QRS:<0.12 seconds at juction. 0.12 or > if at ventricle.
Created by: Jterfehr
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