Relias with 100% correct solutions 2024

What is the normal PR interval for an atrial fibrillation rhythm? correct answersNot applicable What is a potential cause of PVCs? correct answersHypokalemia Which ECG finding is present in an idioventricular rhythm? correct answersWide QRS What type of AV block is associated with progressively longer PR intervals and an eventual Â"droppedÂ" QRS complex? correct answersSecond-degree type I What ventricular rhythm is present when an ECG strip shows no determinable rate, pattern, or organized rhythm, nor does it have P waves, a PR interval, or QRS complexes? correct answersVentricular fibrillation What ECG rhythm has no discernible P waves, irregular fibrillatory waves, and an irregular R to R interval? correct answersAtrial fibrillation What part of the heart is the origin of an idioventricular rhythm? correct answersVentricles Which of the following distinguishes first-degree AV block from normal sinus rhythm? correct answersPR interval greater than 0.20 seconds Which rhythm has Â"sawtoothÂ" patterned waves? correct answersAtrial flutter On the ECG strip, one small square represents what length of time? correct answers0.04 seconds Which of the following is associated with sinus tachycardia? correct answersAnxiety, fear, pain Which of the following can be a source of ECG artifact? correct answersCell phone What characteristic indicates that a premature ventricular contractions (PVCs) could degenerate into a lethal dysrhythmia? correct answersMultifocal What is a rhythm called if it is irregular, yet of sinoatrial node origin (sinus) with similar looking P waves preceding each QRS, and a rate of 60 bpm to 100 bpm? correct answersSinus dysrhythmia What is a cause of torsade de point? correct answersProlonged QT interval