Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Seek emergency care after any significant head injury or if there may be bleeding in the brain.
Warning signs include a sudden or severe headache, repeated vomiting, unusual sleepiness, confusion, seizure, fainting, weakness, poor balance, or changes in vision or speech.
Symptoms can be delayed.
Emergency assessment is also needed for:
If you have an emergency treatment plan, follow it while arranging care.
Tell emergency staff about hemophilia B promptly.
Treatment for a suspected serious bleed may need to begin before scan results are available.
Contact the hemophilia team promptly for a possible joint or muscle bleed, repeated nose or mouth bleeding, blood in urine, unusually heavy menstrual bleeding, or bleeding that does not respond as expected to the usual plan.
Routine appointments are appropriate for reviewing preventive treatment, new bruising patterns, ongoing joint discomfort, planned dental work, surgery, pregnancy planning, or concerns about medicines.
Every sign above is quoted from the sofidex article on Hemophilia B. If you are not sure, err upward — it is always reasonable to be checked.