Relias Dysrhythmia Basic Test Answers Solution guide 2023.

1. normal sinus rhythm: heart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute 2. Sinus Arrhythmia: Appearance is ALMOST NORMAL: Respiratory - Circulatory interaction Rate INCREASES with INSPIRATION (IN=IN) 3. Sinus Bradycardia: <60 normal sinus rhythm 4. Sinus Tachycardia: >100 (100-150) normal sinus rhythm 5. Premature Atrial Contraction (PAC): 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 6. 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) 7. Atrial Fibrillation (A-Fib): an irregular and often very fast heart rate originating from abnormal conduction in the atria 8. Atrial Flutter: irregular beating of the atria; often described as "a-flutter with 2 to 1 block or 3 to 1 block" 9. 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) 10. Junctional Tachycardia: >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 1 / 3 This study source was downloaded by from CourseH on 10-18-2023 23:44:45 GMT -05:00 HIGH FLYER Basic Dysrhythmia-Relias Study online at 11. Premature Junctional Contraction: Inverted p wave or hidden p wave PRI<0.12 or none Normal QRS 12. Supraventricular Tachycardia (SVT): an abnormal heart rhythm arising from aberrant electrical activity in the heart; originates at or above the AV node 13. 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 14. 2nd degree heart block type 1 (Wenkebach): Progressively longer PR interval until the P wave is not followed by a QPR 15. 2nd Degree Heart Block (Mobitz II): Rare, but more serious Sudden appearance of a nonconducted P-wave P-waves are nl, but some aren't followed by a QRS complex PR & RR intervals are constant 16. 3rd degree heart block: no obvious correlation between p and qrs, need pace maker 17. premature ventricular contraction (PVC): a ventricular contraction preceding the normal impulse initiated by the SA node (pacemaker) 18. Bigeminy PVC: every other beat is a PVC