Which of the following is considered a tachycardia rhythm?

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Multiple Choice

Which of the following is considered a tachycardia rhythm?

Tachycardia rhythm means the heart is beating faster than normal, typically defined as a rate over 100 beats per minute. Among the options, sinus tachycardia is the one that fits this definition because it is still a sinus rhythm (P waves normal before each QRS and normal PR interval) but with a rate elevated above 100 bpm. Normal sinus rhythm is within a normal rate range (usually 60–100 bpm), so it isn’t tachycardia. Bradycardia refers to a slow rate (below 60 bpm). A pause describes an interruption or gap in the rhythm, not a consistently fast rate. Thus, the rhythm that represents a tachycardic state is sinus tachycardia.

Tachycardia rhythm means the heart is beating faster than normal, typically defined as a rate over 100 beats per minute. Among the options, sinus tachycardia is the one that fits this definition because it is still a sinus rhythm (P waves normal before each QRS and normal PR interval) but with a rate elevated above 100 bpm.

Normal sinus rhythm is within a normal rate range (usually 60–100 bpm), so it isn’t tachycardia. Bradycardia refers to a slow rate (below 60 bpm). A pause describes an interruption or gap in the rhythm, not a consistently fast rate. Thus, the rhythm that represents a tachycardic state is sinus tachycardia.

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