Which term describes irregularity or loss of rhythm?

• A. BP
• B. Arrhythmia
• C. ECHO
• D. AV node

Answer: (B)

Irregular heart rhythm is described by arrhythmia. It covers any deviation from the heart’s normal rhythm, whether the heart beats too fast, too slow, or in an irregular pattern. That makes it the correct term for irregularity or loss of rhythm. The other terms refer to something different: BP is a measure of blood pressure, not rhythm; ECHO is an imaging test of heart structure and function; and the AV node is a part of the heart’s electrical system that can influence rhythm but is not the term for the rhythm disturbance itself.