Approaching the critically ill patient. Oxygen: use, administration, pitfalls. Fluid resuscitation and monitoring. Blood gas analysis. Sepsis. Cardiological emergencies. Respiratory emergencies. Tracheostomy care. Neurological emergencies. Metabolic and endocrine emergencies. Poisoning. Abdominal emergencies. Nutrition. Use of critical care drugs in the emergency situation. Ethics of caring for the critically ill patient.