Which term is defined as abnormal heart rate, rhythm and conduction system?

Which term is defined as abnormal heart rate, rhythm and conduction system?

• A. Artifact
• B. AV node
• C. Bipolar leads
• D. Arrhythmia

Answer: (D)

An arrhythmia is an abnormal heart rate, rhythm, or conduction caused by irregular electrical activity in the heart. The heart’s rhythm is normally set by impulses that originate in the SA node, travel to the AV node, and then descend through the His-Purkinje system to coordinate atrial and ventricular contractions. When this electrical system malfunctions, impulses can fire too quickly (tachycardia), too slowly (bradycardia), or in an irregular, unsynchronized pattern. Conduction can be slowed, blocked, or arise from reentrant circuits, leading to different ECG appearances and clinical effects. Artifact refers to external interference on the tracing, not a true cardiac event. The AV node is part of the conduction system, essential for coordinating impulses but not the term for a rhythm disturbance. Bipolar leads are a type of ECG lead configuration used to capture signals, not a rhythm abnormality. The term that best describes the described problem is arrhythmia.

An arrhythmia is an abnormal heart rate, rhythm, or conduction caused by irregular electrical activity in the heart. The heart’s rhythm is normally set by impulses that originate in the SA node, travel to the AV node, and then descend through the His-Purkinje system to coordinate atrial and ventricular contractions. When this electrical system malfunctions, impulses can fire too quickly (tachycardia), too slowly (bradycardia), or in an irregular, unsynchronized pattern. Conduction can be slowed, blocked, or arise from reentrant circuits, leading to different ECG appearances and clinical effects.

Artifact refers to external interference on the tracing, not a true cardiac event. The AV node is part of the conduction system, essential for coordinating impulses but not the term for a rhythm disturbance. Bipolar leads are a type of ECG lead configuration used to capture signals, not a rhythm abnormality. The term that best describes the described problem is arrhythmia.