This handbook focuses on endocrine protocols. Endocrinology is the field of hormone-related diseases. An endocrinologist can diagnose and treat hormone problems and the complications that arise from them. Endocrinology focuses both on the hormones and the many glands and tissues that produce them. This handbook consists of 8 chapters, which include clinical biochemistry, evaluation of endocrine disorders, endocrine test protocols, treatment protocols, endocrine emergencies, diabetes protocols, common calculations and scoring systems, and drug doses. The Biochemistry reference ranges mentioned in this book are taken from the Department of Clinical Biochemistry, Christian Medical College, Vellore, Tamil Nadu, and India. The section on endocrine test protocols is specifically written as to enable these tests being performed as Day Care, with all the patients coming in by 8 AM. The treatment protocols in this book are meant only for adult patients and these should not be extrapolated for pediatric patients. This book only helps enhance our starry-eyed gazed of this beautiful science.