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
Seek emergency help for:
New chest pain, severe breathing difficulty, fainting, or confusion
Sudden severe weakness or a very fast heartbeat
Dark urine with rapidly worsening jaundice, pain, or reduced urine output
Fever, chills, back pain, breathing trouble, or distress during a blood transfusion
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
Is any of this happening?
Be seen today
If symptoms begin during a transfusion, alert the healthcare staff immediately.
Seek prompt medical assessment the same day for new yellowing of the skin or eyes, unexplained dark urine, worsening breathlessness, marked fatigue, or a rapid change in known hemolysis symptoms.
3
Does any of this apply?
Book an appointment
Arrange routine follow-up if symptoms are stable but persistent, or if you have questions about monitoring, triggers, medicines, pregnancy, travel, or exercise.
Routine follow-up is also important when you feel well because laboratory changes may appear before symptoms.
Every sign above is quoted from the sofidex article on Hemolysis. If you are not sure, err upward — it is always reasonable to be checked.