Question

multiple choice question
what is an arrhythmia?
a distended vein
a blockage in a coronary vessel
a fatty deposit in a blood vessel
an altered heart rhythm

Explanation:

An arrhythmia is a condition where the heart's rhythm is abnormal, either too fast, too slow, or irregular. It has nothing to do with a distended vein, a coronary - vessel blockage, or a fatty deposit in a blood vessel.

Answer:

An altered heart rhythm