Electrocardiography ECG Analysis Part 2

The time it takes for the electrical impulse to travel from the SA node to the ventricles.

Number of heartbeats per minute.

A prolonged PR interval greater than 0.20 seconds, but the QRS complex is normal.

<p>False</p> Signup and view all the answers

<p>Increased vagal tone, medications like digoxin or beta blockers, myocardial ischemia, or heart disease.</p> Signup and view all the answers

<p>Depending on the cause, medications can be adjusted or discontinued. In cases of underlying heart disease, treatment of the underlying conditions is crucial.</p> Signup and view all the answers

<p>Yes. It indicates that the AV node is not conducting the electrical impulse consistently, and it may progress to 3rd Degree AV Block.</p> Signup and view all the answers

<p>Similar to 1st Degree AV Block, but more severe, including medications, ischemia, and heart disease.</p> Signup and view all the answers

<p>Medications may be adjusted or discontinued, pacing therapy may be necessary.</p> Signup and view all the answers

<p>Progression to 3rd Degree AV Block.</p> Signup and view all the answers

<p>Regularly spaced, dropped beats (QRS complexes), and the PR interval is consistent before a dropped beat.</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>Cardiac arrest and sudden death, if not treated promptly.</p> Signup and view all the answers

<p>P waves are absent or inverted and the QRS complex may be widened.</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>Increased sympathetic nervous system activity, medications, heart disease, or hyperthyroidism.</p> Signup and view all the answers

<p>Treat any underlying conditions, medication adjustments, or pacing therapy if needed.</p> Signup and view all the answers

<p>Progression to other dysrhythmias, such as atrial fibrillation or ventricular tachycardia.</p> Signup and view all the answers

<p>A wide QRS complex that appears earlier than expected within a normal rhythm.</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>When they are frequent, occur in groups (couplets or triplets), multiform (different shapes), or associated with heart disease.</p> Signup and view all the answers

<p>Heart disease, heart attack, high blood pressure, low potassium levels, or certain medications.</p> Signup and view all the answers

<p>Treating the underlying conditions, adjusting medications, or lifestyle modification.</p> Signup and view all the answers

<p>Progression to ventricular tachycardia or fibrillation, leading to cardiac arrest.</p> Signup and view all the answers

<p>A rapid heart rhythm with three or more consecutive beats originating in the ventricles, with wide QRS complexes.</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>It can lead to decreased cardiac output, reduced blood flow to the brain, and potential cardiac arrest.</p> Signup and view all the answers

<p>A polymorphic ventricular tachycardia with a characteristic twisting, alternating wave form.</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>It can degenerate into ventricular fibrillation, leading to cardiac arrest.</p> Signup and view all the answers

<p>Prolonged QT interval, certain medications, electrolyte abnormalities (low potassium, magnesium), or heart disease.</p> Signup and view all the answers

<p>Medications to shorten the QT interval, magnesium sulfate, or pacing therapy.</p> Signup and view all the answers

<p>A slow heart rhythm with wide QRS complexes and no discernible P waves, often seen after a cardiac arrest.</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>It indicates the heart is recovering from a critical event or that the heart has intrinsic rhythm.</p> Signup and view all the answers

<p>Cardiac arrest, severe heart disease, myocardial ischemia, or medications.</p> Signup and view all the answers

<p>Monitoring and support for the patient during recovery, treatment for underlying heart disease, or medications to enhance heart function.</p> Signup and view all the answers

<p>A flat line on the ECG, indicating the absence of any electrical activity in the heart.</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>It signifies a complete lack of heart function, leading to cardiac arrest and death if not treated promptly.</p> Signup and view all the answers

<p>Severe heart disease, heart attack, cardiac arrest, or complete heart block.</p> Signup and view all the answers

<p>CPR (cardiopulmonary resuscitation) and immediate defibrillation (if there is a shockable rhythm).</p> Signup and view all the answers

<p>A condition where the QT interval on the ECG is prolonged, increasing the risk of fatal arrhythmias.</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>Flattened or inverted T waves, prominent U waves and a prolonged QT interval.</p> Signup and view all the answers