Basic Dysrhythmia-Relias 2023 LATEST QUESTIONS AND ANSWERS ALREADY PASSED A+

normal sinus rhythm - CORRECT ANS heart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute Sinus Arrhythmia - CORRECT ANS Appearance is ALMOST NORMAL: Respiratory - Circulatory interaction Rate INCREASES with INSPIRATION (IN=IN) Sinus Bradycardia - CORRECT ANS <60 normal sinus rhythm Sinus Tachycardia - CORRECT ANS >100 (100-150) normal sinus rhythm Premature Atrial Contraction (PAC) - CORRECT ANS 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 - CORRECT ANS - 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) - CORRECT ANS an irregular and often very fast heart rate originating from abnormal conduction in the atria