Heart palpitations: the medical term explained

You may feel the sensation in your chest, neck or throat, and it can happen while resting or moving. Awareness does not by itself identify the cause. Common triggers include emotional stress, poor sleep, fever, exertion, caffeine, nicotine, alcohol, medicines and changes in hydration or blood sugar.

A clinician may ask about timing, rhythm, duration, activity and associated symptoms. An examination and an ECG can help assess the rhythm; blood tests may be considered for problems such as Anaemia, Iron Deficiency Anaemia, Hyperthyroidism or Hypoglycaemia. An irregular rhythm can occur with Atrial Fibrillation.

Stop and sit somewhere safe, breathe slowly, and record what you were doing, how the beat felt and how long it lasted. Note possible triggers and any medicines or supplements taken. Avoid adding stimulants while you are symptomatic, and arrange a medical review if episodes recur, last longer or interfere with daily activities.

Seek emergency help for palpitations with chest pain, severe breathlessness, fainting, collapse, new confusion or persistent severe dizziness. Arrange prompt assessment for repeated episodes, a sustained very fast or irregular heartbeat, or symptoms with a known heart condition. Breathlessness when lying down or swelling may need assessment for Heart Failure.

Ask whether you need an ECG, a wearable rhythm monitor or blood tests; whether your medicines could contribute; and which symptoms should prompt urgent help.