Which heart rhythm is characterized by narrow QRS complexes and a heart rate of 150-250 bpm?

Which heart rhythm is characterized by narrow QRS complexes and a heart rate of 150-250 bpm?

• A. Ventricular Fibrillation
• B. Atrial Fibrillation
• C. Supraventricular Tachycardia
• D. Bradycardia

Answer: (C)

The heart rhythm characterized by narrow QRS complexes and a heart rate of 150-250 beats per minute is known as Supraventricular Tachycardia (SVT). This rhythm originates from the atria or the atrioventricular node and is typically associated with rapid electrical conduction pathways that enable a swift heart rate. Narrow QRS complexes indicate that the rhythm is not originating from the ventricles, which would display a wide QRS complex due to slower conduction through the ventricular myocardium. In the case of SVT, the rapid impulses lead to a fast heart rate, and the QRS complexes remain narrow, often suggesting that there is effective filtering of impulses through the atrioventricular (AV) node. Understanding the characteristics of SVT is crucial for telemetry monitor technicians, as distinguishing between different arrhythmias is essential for patient management and appropriate treatment. Recognizing the specific parameters of rapid heart rates in relation to QRS complex width enables clinicians to make quicker, more accurate diagnoses.

The heart rhythm characterized by narrow QRS complexes and a heart rate of 150-250 beats per minute is known as Supraventricular Tachycardia (SVT). This rhythm originates from the atria or the atrioventricular node and is typically associated with rapid electrical conduction pathways that enable a swift heart rate.

Narrow QRS complexes indicate that the rhythm is not originating from the ventricles, which would display a wide QRS complex due to slower conduction through the ventricular myocardium. In the case of SVT, the rapid impulses lead to a fast heart rate, and the QRS complexes remain narrow, often suggesting that there is effective filtering of impulses through the atrioventricular (AV) node.

Understanding the characteristics of SVT is crucial for telemetry monitor technicians, as distinguishing between different arrhythmias is essential for patient management and appropriate treatment. Recognizing the specific parameters of rapid heart rates in relation to QRS complex width enables clinicians to make quicker, more accurate diagnoses.