Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
1
Is any of this happening now?
Call 911
Call emergency services now for:
Unresponsiveness or abnormal breathing
Chest pressure, stroke warning signs, or severe breathing difficulty
Severe choking or a blocked airway
Bleeding that is heavy or will not stop
A severe allergic reaction
A seizure lasting five minutes or longer, repeated seizures, or a first seizure
Major trauma, suspected neck or spine injury, or a serious head injury
A large, deep, electrical, chemical, or airway burn
Sudden confusion, severe weakness, or rapidly worsening symptoms
If you are unsure whether the situation is an emergency, an emergency dispatcher can help assess what to do next.
Other emergency signs, for anyone
Someone who is struggling to breathe, gasping, choking, or cannot get words out
Someone who has chest pain, tightness or pressure lasting more than a few minutes
Someone who has sudden weakness or drooping on one side of the face or body, slurred speech, or sudden confusion
Someone who is unconscious, or cannot be woken
Someone who is bleeding heavily and it will not stop with firm pressure
Someone who has had a seizure that will not stop, or does not wake up afterwards
Someone who has lips or skin that look pale, blue, grey or blotchy
Someone who you believe has taken an overdose or swallowed something poisonous
2
Does any of this apply?
Book an appointment
Arrange routine medical advice for a wound that may need closure, a burn that is not healing, persistent pain or swelling, possible infection, or questions about tetanus protection.
Every sign above is quoted from the sofidex article on First aid. If you are not sure, err upward — it is always reasonable to be checked.