Cardiac Dysrhythmias and Nursing Care Quiz

Hyperkalemia is commonly associated with the development of cardiac dysrhythmias, affecting the heart's electrical conductivity.

Hypokalemia is not a common cause of premature ventricular contractions (PVCs); other factors like stress or stimulants are more common triggers.

Atrial fibrillation is characterized by irregular, chaotic atrial activity with no discernible pattern on ECG.

Amiodarone is the first-line treatment for stable ventricular tachycardia due to its antiarrhythmic properties.

Adenosine is commonly used to treat supraventricular tachycardia by transiently slowing conduction through the AV node.

Heart block is the term used to describe a pause in the heart rhythm, often due to conduction abnormalities.

Atrial flutter is characterized by a rapid, regular atrial rate with an irregular ventricular rate, often in a 2:1 or 4:1 conduction pattern.

Ventricular fibrillation is characterized by chaotic, rapid ventricular activity with an absence of P waves on ECG.

Amiodarone is commonly used to convert atrial fibrillation to sinus rhythm and maintain normal heart rhythm.

Second-degree heart block type II is characterized by intermittent non-conducted P waves without a progressive PR interval prolongation on ECG.

Hypokalemia can predispose a patient to develop torsades de pointes, a specific type of ventricular tachycardia with a characteristic twisting appearance on ECG.

In third-degree AV block, there is no association between P waves and QRS complexes on ECG, indicating complete conduction block between atria and ventricles.