Syndrome of inappropriate antidiuretic hormone secretion: when to get help
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 medical help for:
A seizure
Loss of consciousness or difficulty waking
Sudden severe confusion
Serious breathing difficulty
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
These symptoms may indicate severe hyponatremia or another urgent condition.
Seek prompt medical advice for new confusion, repeated vomiting, a severe or worsening headache, marked drowsiness, major weakness, or rapidly worsening balance.
This is especially important if you have known SIADH or recently started a medicine associated with low sodium.
3
Does any of this apply?
Book an appointment
Arrange routine follow-up if thirst, cramps, tiredness, nausea, concentration problems, or unsteadiness continue.
Also seek advice if a fluid restriction is difficult to follow, if you become unwell with vomiting or diarrhea, or if your medicines change.
Do not adjust a prescribed fluid plan based only on symptoms.