Cardiac Dysrhythmias

This document provides a comprehensive summary of cardiac dysrhythmias, including diagnostic criteria for ECG interpretation and associated treatments. It includes details on normal ECG measurements, key rhythm abnormalities (e.g., atrial fibrillation, ventricular tachycardia), and emergency interventions. Also covered are foundational cardiology terms and essential nursing care procedures for managing arrhythmias, cardiac arrest, and sudden cardiac death.

EAQ Test 3. Cardiac Dysrhythmias

Cardiac Dysrhythmias Part 2 Questions and Answers 100% Accuracy 1st Heart Block characteristics -prolong PR interval >.20 on EKG. -pt. asymptomatic 1st Heart Block causes MI, CAD, rheumatic fever, hyperthyroid, electrolyte, vagal stimulation, drugs (dig, BETAS, CCB's, Flecainide) 1st Heart Block treatments no tx. monitor for changes 2nd Heart Block Type 1 characteristics -PR interval progressively gets longer until QRS drops, then repeat -going, goingg, goinggg, gone 2nd Heart...

Cardiac Dysrhythmias Comprehensive Question and Answers 2024 Three causes of dysrhythmias 1. disturbances in automaticity 2. disturbances in conductivity 3. reentry of impulses the initiation of impulses automaticity the speed of impulses conductivity Cardiac tissue is depolarized multiple times by the same impulse reentry of impulse Normal calcium levels 9-10.5 mg/dL Normal magnesium levels 1.7-2.2 mg/dL How would kidney dz increase the risk for dysrhythmias? inability to excr...

Cardiac Dysrhythmias Advanced Question and Answers 100% Accuracy, 2024 What is the pacemaker of the heart normally? SA Node. Where does the SA node originate? Upper right atrium. What is the pathway of conduction in the heart? SA node -> atria -> AV node -> bundle of his -> bundle branches -> purkinje fibers -> ventricles. What does stimulation of the vagus nerve cause? Decreased firing of the SA node and slowed impulse conduction of the AV node. What does stimula...

Cardiac Dysrhythmias Question and Answers 6 questions for EKG analysis -Is it regular? -Does every P have a QRS and does every QRS have a P? -What is the Rate? -Is the PR interval WNL? -Is the QRS WNL? -Is the ST segment prolonged, short or elevated? Normal heart rate 60-100 bpm Normal PR interval length 0.12-0.20 sec 1 small box on the EKG is 0.04 sec 1 big box is on the EKG is 0.20 sec 30 big boxes on the EKG are 6 sec To determine HR on the EKG count the R waves in 6...

Cardiac Dysrhythmias Comprehensive Question and Answers 2024 Three causes of dysrhythmias 1. disturbances in automaticity 2. disturbances in conductivity 3. reentry of impulses the initiation of impulses automaticity the speed of impulses conductivity Cardiac tissue is depolarized multiple times by the same impulse reentry of impulse Normal calcium levels 9-10.5 mg/dL Normal magnesium levels 1.7-2.2 mg/dL How would kidney dz increase the risk for dysrhythmias? inability to excr...

Cardiac Dysrhythmias Question and Answers 6 questions for EKG analysis -Is it regular? -Does every P have a QRS and does every QRS have a P? -What is the Rate? -Is the PR interval WNL? -Is the QRS WNL? -Is the ST segment prolonged, short or elevated? Normal heart rate 60-100 bpm Normal PR interval length 0.12-0.20 sec 1 small box on the EKG is 0.04 sec 1 big box is on the EKG is 0.20 sec 30 big boxes on the EKG are 6 sec To determine HR on the EKG count the R waves in 6...

Cardiac Dysrhythmias Part 2 Questions and Answers 100% Accuracy 1st Heart Block characteristics -prolong PR interval >.20 on EKG. -pt. asymptomatic 1st Heart Block causes MI, CAD, rheumatic fever, hyperthyroid, electrolyte, vagal stimulation, drugs (dig, BETAS, CCB's, Flecainide) 1st Heart Block treatments no tx. monitor for changes 2nd Heart Block Type 1 characteristics -PR interval progressively gets longer until QRS drops, then repeat -going, goingg, goinggg, gone 2nd Heart...

Cardiac Dysrhythmias Comprehensive Question and Answers 2024 Three causes of dysrhythmias 1. disturbances in automaticity 2. disturbances in conductivity 3. reentry of impulses the initiation of impulses automaticity the speed of impulses conductivity Cardiac tissue is depolarized multiple times by the same impulse reentry of impulse Normal calcium levels 9-10.5 mg/dL Normal magnesium levels 1.7-2.2 mg/dL How would kidney dz increase the risk for dysrhythmias? inability to excr...