This issue of Emergency Medicine Clinics edited by Drs. George Willis and Tyson Pillow focuses on Endocrine and Metabolic Emergencies and covers topics such as: Diabetes Mellitus, Hypothyroidism, Hyperthyroidism, Adrenal Emergencies, Derangements of Potassium, Derangements of Sodium/Water Balance, Derangements of Calcium, Magnesium, and Phosphorus, Metabolic Acidosis, Neonatal Endocrine Emergencies and more.