Certified Cardiographic Technician (CCT) Practice exam

Question: 1 / 400

What cardiac condition is identified by high-frequency, irregular waves with no identifiable P waves?

Ventricular fibrillation

Atrial flutter

Atrial fibrillation

Atrial fibrillation is characterized by rapid, high-frequency electrical discharges originating from the atria, leading to an irregular and highly chaotic rhythm. In this condition, the waves seen on the electrocardiogram (ECG) appear as irregular and typically do not show distinct P waves, which are normally representative of atrial depolarization. Instead of clear P waves, there are fibrillatory waves that indicate a lack of coordinated atrial contraction, resulting in an irregularly irregular ventricular response. This can lead to complications such as reduced cardiac output and an increased risk of thromboembolic events. Recognizing the absence of identifiable P waves alongside the irregular waves is crucial for correctly diagnosing atrial fibrillation and differentiating it from other arrhythmias.

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Sinoatrial block

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