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Basic Dysrhythmia-Relias Questions And Answers $11.49   Add to cart

Exam (elaborations)

Basic Dysrhythmia-Relias Questions And Answers

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Basic Dysrhythmia-Relias Questions And Answers Sinus Arrest/Pause - SA node doesn't fire - notice absence of P-wave for a complete cycle (a missed cycle) length of pause ≠ multiple of normal rate (block) Atrial Fibrillation (A-Fib) an irregular and often very fast heart rate originating fro...

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  • October 20, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Relias Dysrhythmia
  • Relias Dysrhythmia
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Basic Dysrhythmia-Relias Questions And
Answers

Sinus Arrest/Pause - SA node doesn't fire


- notice absence of P-wave for a complete cycle (a missed cycle)

length of pause ≠ multiple of normal rate (block)




Atrial Fibrillation (A-Fib) an irregular and often very fast heart rate originating from

abnormal conduction in the atria




Atrial Flutter irregular beating of the atria; often described as "a-flutter with 2 to 1 block

or 3 to 1 block"




Junctional Rhythm 40-60 Regular!


-impulse from AV node w/ retro/antegrade transmission

- P wave often inverted/buried/follow QRS

- slow rate

- narrow QRS (not wide like ventricular)




Junctional Tachycardia >60 bpm (ms. K; 150-250)

, Basic Dysrhythmia-Relias Questions And
Answers
- KEY: will be regular (consistent)

- AV junction produces a rapid sequence of QRS-T cycles

- p-wave often inverted/buried/follow QRS




Premature Junctional Contraction Inverted p wave or hidden p wave


PRI<0.12 or none

Normal QRS




Supraventricular Tachycardia (SVT) an abnormal heart rhythm arising from aberrant

electrical activity in the heart; originates at or above the AV node




First degree heart block atrioventricular (AV) block in which the atrial electrical impulses

are delayed by a fraction of a second before being conducted to the ventricles




2nd degree heart block type 1 (Wenkebach) Progressively longer PR interval until the P

wave is not followed by a QPR




2nd Degree Heart Block (Mobitz II) Rare, but more serious

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