BASIC DYSRHYTHMIA-RELIAS EXAM | QUESTIONS AND ANSWERS | GRADED A+ |

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