American Registry of Radiologic Technologists (ARRT) Practice Exam

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What is the definition of tachycardia?

Slow heart rate

Regular heart rate

Rapid heart rate

Tachycardia is defined as a rapid heart rate, typically indicated by a resting heart rate exceeding 100 beats per minute in adults. This condition can be a response to various factors, including exercise, stress, or medical conditions. Understanding tachycardia is important in clinical practice, as it can affect cardiac output and indicate underlying health issues that may require further investigation or intervention.

The other terms provided describe different heart rate characteristics: achieving clarity in these definitions is crucial in distinguishing between normal, slow, or irregular heart rhythms. For instance, bradycardia refers to a slow heart rate, while an irregular heart rate might be indicative of arrhythmias. Regular heart rate, on the other hand, pertains to a consistent rhythm or pacing, which is distinct from the rapid pacing indicated by tachycardia.

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Irregular heart rate

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