A user-friendly, pocket-sized reference for all physicians faced with endocrine care and challenges in hospitalized patients, this handbook covers the most common issues leading to an inpatient endocrine consult, providing differential diagnoses, a reasonable and practical approach to investigating and managing the condition, and advice for follow-up. Conditions discussed include thyrotoxicosis and thyroid storm, calcium disorders, osteoporosis, Cushing's syndrome, pheochromocytoma and paraganglioma, primary hyperaldosteronism, hypoglycemia in diabetic and non-diabetic patients, and endocrine issues during pregnancy, among others. Suggestions for further reading are included, providing more context for well-established clinical approaches.