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 for:
Severe trouble breathing, blue or grey lips, or inability to speak normally
A seizure, collapse, severe confusion, or reduced consciousness
Sudden severe weakness or loss of coordination
Repeated vomiting or intense abdominal pain after substantial exposure
And for anyone, someone who:
you believe has taken an overdose or swallowed something poisonous
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
2
Is any of this happening?
Be seen today
If someone swallows solder, contact a poison information service promptly, especially if the person is a child or the solder may contain lead.
Do not make them vomit unless a poison specialist tells you to do so.
Seek prompt medical advice for new wheezing, chest tightness, breathlessness, or symptoms that repeatedly occur during soldering.
Known exposure during pregnancy also deserves prompt assessment.
3
Does any of this apply?
Book an appointment
Arrange routine medical or occupational health follow-up if you solder regularly, have used lead solder without good hygiene controls, or may be bringing contaminated dust home.
Testing may be appropriate even when there are no symptoms.
Every sign above is quoted from the sofidex article on Solder poisoning. If you are not sure, err upward — it is always reasonable to be checked.