Basic Dysrhythmia-Relias

BASIC DYSRHYTHMIA-RELIAS QUESTIONS AND ACCURATE
SOLUTIONS




normal sinus rhythm - rh rh rh




answersheart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 b
rh rh rh rh rh rh rh rh rh rh rh rh rh rh rh rh rh rh rh




eats per minuterh rh




Sinus Arrhythmia - answersAppearance is ALMOST NORMAL:
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Respiratory - Circulatory interaction rh rh rh




Rate INCREASES with INSPIRATION (IN=IN)
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Sinus Bradycardia - answers<60rh rh rh




normal sinus rhythm rh rh




Sinus Tachycardia - answers>100 (100-150)
rh rh rh rh




normal sinus rhythm rh rh




Premature Atrial Contraction (PAC) - answersHeart Rate: Depends on underlying rhythm
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Regularity: Interrupts the regularity of underlying rhythm
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P-Wave: can be flattened, notched, or unusual. May be hidden within the T wave
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PRI: measures between .12-
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.20 seconds and can be prolonged; can be different from other complexes
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QRS: <.12 seconds rh rh




Sinus Arrest/Pause - answers- SA node doesn't fire
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, - notice absence of P-wave for a complete cycle (a missed cycle)
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length of pause ≠ multiple of normal rate (block)
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Atrial Fibrillation (A-Fib) - rh rh rh




answersan irregular and often very fast heart rate originating from abnormal conduction in the at
rh rh rh rh rh rh rh rh rh rh rh rh rh rh rh




ria



Atrial Flutter - answersirregular beating of the atria; often described as "a-
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flutter with 2 to 1 block or 3 to 1 block"
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Junctional Rhythm - answers40-60 Regular! rh rh rh rh




-impulse from AV node w/ retro/antegrade transmission rh rh rh rh rh rh




- P wave often inverted/buried/follow QRS
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- slow rate
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- narrow QRS (not wide like ventricular)
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Junctional Tachycardia - answers>60 bpm (ms. K; 150-250) rh rh rh rh rh rh rh




- KEY: will be regular (consistent)
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- AV junction produces a rapid sequence of QRS-T cycles
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- p-wave often inverted/buried/follow QRS
rh rh rh rh




Premature Junctional Contraction - answersInverted p wave or hidden p wave rh rh rh rh rh rh rh rh rh rh




PRI<0.12 or none rh rh




Normal QRS rh




Supraventricular Tachycardia (SVT) - rh rh rh




answersan abnormal heart rhythm arising from aberrant electrical activity in the heart; originate
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s at or above the AV node
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