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 help for severe difficulty breathing, chest pain, fainting, uncontrolled bleeding, a seizure, sudden severe confusion, or loss of consciousness.
Use your local emergency number rather than waiting for the transplant clinic to respond.
Contact your transplant team promptly for a fever at or above the threshold they gave you, worsening abdominal pain, vomiting that prevents you taking medicines, new jaundice, reduced urine, increasing swelling, confusion, wound redness or drainage, or an anti-rejection dose that was missed or vomited.
Routine questions about mild medicine side effects, diet, activity, appointments, or returning to work can usually wait for normal clinic hours unless your team has advised otherwise.
Every sign above is quoted from the sofidex article on Liver transplant. If you are not sure, err upward — it is always reasonable to be checked.