Chest pain and Cardiac arrest

Chest pain noun - Pain in the chest.

Cardiac arrest and chest pain are semantically related. in heart failure topic. In some cases you can use "Cardiac arrest" instead a noun phrase "Chest pain".

Cardiac arrest noun - Absence of systole; failure of the ventricles of the heart to contract (usually caused by ventricular fibrillation) with consequent absence of the heart beat leading to oxygen lack and eventually to death.

Chest pain and cardiac arrest are semantically related. Sometimes you can replace phrase "Chest pain" with "Cardiac arrest", this phrases are similar.