Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
These concerns usually need timely assessment but are not always emergencies.
Emergency assessment is appropriate for fainting, severe weakness or paralysis, confusion, a seizure, chest discomfort, or a fast or irregular heartbeat, especially when an electrolyte problem may be present.
Contact the treating clinician promptly for a clear increase in thirst or urine output, worsening cramps or weakness, poor growth, repeated vomiting or diarrhea, difficulty taking supplements, new hearing concerns, or possible medicine side effects.
Seek urgent medical care if the person cannot keep down fluids or supplements, appears significantly dehydrated, or has much less urine than usual.
Bartter syndrome usually requires long-term follow-up.
The schedule depends on age, disease severity, treatment, and whether findings are stable.
Routine visits may include measurement of blood pressure, weight, height in children, hydration status, and symptoms.
Blood tests commonly monitor potassium, sodium, chloride, bicarbonate, magnesium, and kidney function.
Urine tests and kidney imaging may be repeated when there is concern about excess calcium, nephrocalcinosis, or stones.
The article also says
People taking an NSAID need monitoring for kidney effects, stomach symptoms, bleeding, and blood pressure changes.
Hearing should be assessed when the genetic form is associated with hearing loss or when there are concerns about speech or response to sound.
A genetics consultation can help families understand test results, recurrence chances, and options for testing relatives.
Before pregnancy, people with Bartter syndrome or a known family variant may wish to discuss reproductive and prenatal testing options.
Every sign above is quoted from the sofidex article on Bartter syndrome. If you are not sure, err upward — it is always reasonable to be checked.