Electrocardiography (ECG) Basics Quiz

V1 = Over 4th intercostal space near right sternal margin V2 = Over 4th intercostal space near left sternal margin V3 = In between V2 and V4 V4 = Over left 5th intercostal space on the mid clavicular line

V5 = Over left 5th intercostal space on the anterior axillary line V6 = Over left 5th intercostal space on the mid axillary line RA = Right arm LA = Left arm

LL = Left leg RL = Right leg Lead wires = Connect electrodes to electrocardiograph Chest leads = Electrodes placed on chest for graphical representation

<p>Explain to the patient the need to lie still, relax, and breathe normally during the procedure. = Patient Preparation Place electrodes on the inner aspect of the wrists, on the medical aspect of the lower legs, and on the chest. = Implementation Disconnect the equipment, remove the electrodes, and remove the gel with a moist cloth towel. = Nursing Interventions Count the heart rate using large and small boxes in ECG tracing. = Interpretations</p> Signup and view all the answers

<p>Sinus rhythm = Cardiac impulse originates from sinus node with each QRS preceded by P wave. Sinus bradycardia = Rhythm originates in sinus node with a rate less than 60 BPM. Sinus tachycardia = Rhythm originates in sinus node with a rate more than 100 BPM. Irregular heart rate counting R waves in the rhythm stripe for 30LB*10. = Rhythm Interpretation</p> Signup and view all the answers

<p>Electrodes = Detecting the heart's electrical signal Graph paper = Transcribing electrical changes ECG device = Recording electrical activity of the heart over time Cardiac muscle = Resulting in depolarization and repolarization</p> Signup and view all the answers

<p>Identifying primary conduction abnormalities = Helps in recognizing irregular heart rhythms Monitoring recovery from an MI = Assessing progress after a heart attack Evaluating the effectiveness of cardiac medication = Assessing the impact of heart drugs Assessing pacemaker performance = Determining how well a pacemaker is functioning</p> Signup and view all the answers

<p>Identifying myocardial ischemia = Detecting reduced blood flow to the heart muscle Monitoring thrombolytic therapy effectiveness = Assessing the impact of clot-busting treatment Assessing resolution of ST-segment depression or elevation and T-wave changes = Determining improvement in specific ECG patterns Determining the site and extent of myocardial infarction = Locating and evaluating the severity of a heart attack</p> Signup and view all the answers

<p>The ECG is a graphic representation of the heart's mechanical activity = Inaccurate ECG is a routine part of every cardiovascular evaluation = Accurate ECG helps identify electrolyte imbalances = Accurate ECG is used to assess lung function = Inaccurate</p> Signup and view all the answers

<p>Identifying cardiac hypertrophy = Detecting enlargement of the heart muscle Evaluating effectiveness of thrombolytic therapy = Assessing impact of clot-dissolving treatment Assessing recovery from an MI = Monitoring progress after a heart attack Determining effectiveness of pacemaker performance = Evaluating how well a pacemaker is working</p> Signup and view all the answers

<p>Identifying pericarditis = Detecting inflammation around the heart Assessing effectiveness of cardiac medication = Evaluating impact of heart drugs Monitoring recovery from an MI = Tracking progress after a heart attack Assessing pacemaker performance = Evaluating how well a pacemaker is functioning</p> Signup and view all the answers