Contraindications to ASA in patients with suspected ACS in prehospital care

What are the absolute contraindications to the administration of acetylsalicylic acid in patients with suspected acute coronary syndrome during prehospital care?

Bernd W. Böttiger: Acetylsalicylic acid is very effective in lowering the risk of any kind of morbidity in acute coronary syndrome, so acute myocardial infarction. It should be used as often as possible. In my eyes, the only absolute contraindication is that it is not available or that you have a patient with anamnestically known severe, severe allergic reactions to it.