Basic Dysrhythmia-Relias Questions and Answers
Basic Dysrhythmia-Relias normal sinus rhythm - Answer-heart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute Sinus Arrhythmia - Answer-Appearance is ALMOST NORMAL: Respiratory - Circulatory interaction Rate INCREASES with INSPIRATION (IN=IN) Sinus Bradycardia - Answer-60 normal sinus rhythm Sinus Tachycardia - Answer-100 (100-150) normal sinus rhythm Premature Atrial Contraction (PAC) - Answer-Heart Rate: Depends on underlying rhythm Regularity: Interrupts the regularity of underlying rhythm P-Wave: can be flattened, notched, or unusual. May be hidden within the T wave PRI: measures between .12-.20 seconds and can be prolonged; can be different from other complexes QRS: .12 seconds Sinus Arrest/Pause - Answer-- 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) - Answer-an irregular and often very fast heart rate originating from abnormal conduction in the atria Atrial Flutter - Answer-irregular beating of the atria; often described as "a-flutter with 2 to 1 block or 3 to 1 block" Junctional Rhythm - Answer-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 - Answer-60 bpm (ms. K; 150-250) - 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 - Answer-Inverted p wave or hidden p wave PRI0.12 or none Normal QRS Supraventricular Tachycardia (SVT) - Answer-an abnormal heart rhythm arising from aberrant electrical activity in the heart; originates at or above the AV node First degree heart block - Answer-atrioventricular (AV) block in which the atrial electrical impulses are delayed by a fraction of a second before being conducted to the ventricles
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- Subido en
- 14 de abril de 2024
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- Escrito en
- 2023/2024
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