RPSGT ECG Questions and answers 2023 verified

RPSGT ECG Questions and answers 2023 verified When analyzing a rhythm strip, it qualifies as being regular when the PR interval measures the same Normal cardiac cycle on ECG 1. P wave: atrial depolarization 2. P-R interval: time required for impulse to travel from atria though conduction system to Purkinje fibers. 3. QRS wave: ventricular depolarization 4. ST segment: beginning of ventricular repolarization 5. T wave: ventricular repolarization 6. QT interval: time for electrical systole Premature ventricular contractions (PVC) on ECG: -No P wave -Bizarre and wide QRS that is premature, followed by long pause Ventricular tachycardia (VT) on ECG: -15--200 bpm -Wide, bizarre QRS waves -No P waves Ventricular fibrillation (VF) on ECG -Bizarre, erratic activity without QRS complexes Atrial arrhythmias (supraventricular) on ECG: -P wave are abnormal (variable in shape) or not identifiable (atrial fibrillation) Impaired coronary perfusion (ischemia or injury) on ECG: -ST segment becomes depressed -ST depression can be upsloping, horizontal or downsloping Acute MI on ECG: ST elevation Hyperkalemia -Widens QRS -Flattens P wave -T wave becomes peaked Hypokalemia -Flattens T wave (or inverts) -Produces a U wave Which of the following steps is not one of the five-steps of rhythm analysis? QT Interval Which of the following is considered normal range of the QRS complex? 0.06 - 0.10 seconds Which of the following is considered normal range of the PR interval? 0.12 - 0.20 seconds