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 if your child is unresponsive, has severe difficulty breathing, looks blue or grey, or has green vomit with a swollen or very painful abdomen.
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
Arrange review sooner for a young baby or if the change is rapid.
Seek same-day medical advice if your child:
Is feeding poorly and passing much less urine
Is unusually sleepy, weak, or difficult to keep awake
Has repeated vomiting or cannot keep fluids down
Has persistent diarrhoea with signs of dehydration
Is losing weight and appears generally unwell
Coughs, chokes, sweats, or becomes breathless during feeds
And for anyone, someone who:
is getting rapidly more short of breath, or has gained several pounds in a few days with swelling
3
Does any of this apply?
Book an appointment
Book a routine appointment if your child is gaining weight more slowly than expected, has crossed down growth chart lines, is losing weight without a clear reason, or has continuing feeding difficulties.
And for anyone, someone who:
has noticed a lump, a mole that has changed, or unexplained weight loss
Every sign above is quoted from the sofidex article on Faltering weight. If you are not sure, err upward — it is always reasonable to be checked.