A Holter monitor may also be sued which is worn for a 24-hour period and will pick up any changes in heart rhythm during that extended period of monitoring. Heart catherization can be done to actually study the conduction system. The cardiologist can trigger the heart with electrical pulses and see how the conduction system responds. Usually, we no not need to go that far with testing. Treatment includes removing anything that might have triggered the arrhythmia.
Medication is helpful in controlling the irregular heart beat.
If the arrhythmia is dangerous, and electrical shock can be administered which can sometimes put the heart back into the right rhythm.