Accident and emergency departments are staffed by doctors and nurses and can be contacted twenty-four hours a day, every day. They are intended for patients in need of emergency care, i.e. treatment of illnesses and injuries that cannot wait until the next day to be dealt with by a regular GP. With many GPs it is possible to book an appointment on the same day, and it is important to check this before calling the accident and emergency department. You can also ask for advice on the phone.