Chest Pain and Cardiac Dysrhythmias -- Shortness of Breath -- Abdominal and Pelvic Pain -- Trauma, Shock and Resuscitation -- Fever -- Poisoning and Overdose -- Altered Mental Status -- Gastrointestinal Bleeding -- Musculoskeletal Injuries -- Headache, Weakness, and Dizziness -- Pediatrics -- Vaginal Bleeding -- Ultrasound in the Emergency Department -- Environmental Exposures -- Eye Pain and Visual Change -- Wound Care -- Prehospital, Disaster, Administration -- Endocrine Emergencies -- Psychosocial Disorders.