Causes of Fatigue - Differential Diagnosis Algorithm Endocrine • Hypo/Hyperthyroidism • Diabetes • Pituitary Insufficiency • Adrenal Insufficiency Metabolic • Renal Failure • Liver Failure • Hypercalcemia Neoplastic / Hematologic • Anemia • Malignancy Infectious • Endocarditis • Tuberculosis • Epstein-Barr Virus • Hepatitis • HIV Autoimmune / Inflammatory • Rheumatoid Arthritis • SLE • Polymyalgia Rheumatica Cardiopulmonary • Congestive Heart Failure • Chronic Obstructive Pulmonary Disease Neurologic • Depression • Multiple Sclerosis • Stroke • Parkinson's • Myasthenia Gravis Pharmacologic • Hypnotics • Anti-hypertensives • Anti-Depressants • Drug Abuse (e.g. Alcohol) • Drug Withdrawal Psychogenic • Anxiety • Somatization Disorder • Malnutrition / Drug Addiction Idiopathic • Chronic Fatigue Syndrome #Chronic #Fatigue #Differential #Diagnosis #Algorithm #causes
