Right vs left bundle branch block
[DOC File]EKG COURSE HANDOUT 2006
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-if V1 is positive, then right bundle branch block (V1 should always be negative)-if there is left axis deviation, then appearance is more of a left bundle branch block-if positive V1 with left axis deviation, then both left and right bundle branch blocks-1st degree AV block-consistently long PR interval (longer than 0.2 seconds)
[DOC File]ABBREVIATIONS AND SYMBOLS
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Ex. -- On the ECG overhead, there is an R, R1, S pattern…This can occur due to a bifascicular bundle branch block. The RPBBB (right posterior bundle branch block) and LPFBB (left posterior fascicular bundle block) are the cause of the block. In a 1st degree AV block, there is an increased distance between the P and the QRS wave.
[DOC File]Ventricular Rhythms - Triton College
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Left bundle branch block is more ominous than right bundle branch block because it usually is present in diseased hearts. Both may be caused by hypertension, MI, or cardiomyopathy. A bifasicular block may progress to third degree heart block.
[DOC File]Basic EKG Dysrhythmia Identification
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Right bundle branch block (RBBB) rSR’ pattern in V1; R’ both taller and wider than R. the QRS complexes are usually upgoing in V1. usually wide S waves in left leads. bifascicular block: RBBB + left anterior or posterior fascicular block. RBBB does not affect the initial QRS forces: search for pathologic Q waves
Bundle Branch Block | Texas Heart Institute
-Complete right or left bundle branch block- QRS measuring more than 0.12 seconds-To determine right vs. left-view lead V1 or MCI1-move from the J point back into the QRS complex and determine if the terminal portion of the QRS complex is a positive or negative deflection
[DOC File]9/5
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LBBB left bundle branch block. LBP low back pain. LD left deltoid. L & D labor and delivery. LE lupus erythramatosus. LFD low forceps delivery. LFT liver function test. ... RBBB right bundle branch block. RBC red blood cell; red blood (cell) count. RCM red blood mass. RD right deltoid. RDS respiratory distress syndrome.
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