Tachycardia (rate >100) originating from sino-atrial node
Can be normal as a result of increased sympathetic drive e.g. exercise or anxiety.
Regular fast pulse
Usually asymptomatic, fast, regular palpitations
Bloods: FBC, TFTs
24-hour ECG monitor: Detect arrhythmias
24-hour urine collection: if phaeochromocytoma suspected
Treat underlying cause appropriately
Complications are related to aetiology Depends on aetiology, usually good
