The conversation between human and AI assistant.
[|Human|] Hi there,I have had many test for arrhythmia including a 7 day ECG but so far nothing has been found. Should I keep pushing my doctor for more tests as i still get the arrhythmia, but only every now and then, i can go weeks without having one. Many thanks
[|AI|]  Hello! Thank you for asking on Chat Doctor! Regarding your concern, I would explain that sometimes it is difficult to catch a cardiac arrhythmia on a Holder monitoring. Another option would be the implantation of a loop monitoring, which can be held for a longer time, and you can switch it on, when you feel the palpitations. Other tests to consider in order to investigate for the possible underlying causes would be: - complete blood count for anemia-thyroid hormone levels for thyroid dysfunction- blood electrolytes for possible imbalance. Hope you will find this answer helpful! Wishing good health, 
