Also you may implement differential diagnosis by using mobile devices.
SmrtX Second Opinion App is a Physicians' Mobile Reference has been the authoritative source on Health Condition Diagnosis for last years. Found in verily every doctor's office, clinic, and laboratory, no medical mobile (Windows, iOS, Android) reference is more current, more recognized, and more respected.
The Second Opinion Decision Support App is very helpful to make diagnosis and decide treatment strategy.

Also Second Opinion Mobile App is useful for clinical therapeutics students at medical schools as educational software.

Metabolic acidosis · Metabolic alkalosis · Respiratory acidosis · Respiratory alkalosis · Diabetic ketoacidosis · DIC (Disseminated intravascular coagulation) · Adrenal Insufficiency & Addison's Disease · Proteinuria (Albuminuria) · Alcoholism · Inflammation (any) · Inflammatory Condition · Anemia (any) · Iron Deficiency Anemia · Pernicious Anemia (B Vitamin Deficiencies) · Aplastic Anemia · Hemolytic Anemia (Thalassemia) · Neural Tube Defects, Anencephaly · Vasculitis, Angiitis, Arteritis · Ankylosing Spondylitis, Rheumatoid spondylitis · Asthma · Allergies · Arthritis · Osteoarthritis · Rheumatoid Arthritis · Juvenile Rheumatoid Arthritis; JRA; Juvenile Idiopathic Arthritis; JIA; Juvenile chronic arthritis; JCA · Gout; Gouty arthritis (Hyperuricemia) · Septic Arthritis · Reactive Arthritis; Post-infectious arthritis · Nontuberculous Mycobacteria · Pneumonia · Hashimoto Thyroiditis; Hypothyroidism · Graves Disease; Hyperthyroidism · Influenza; Flu · Benign Prostatic Hyperplasia; Prostate gland enlargement · Prostate Cancer · Prostatitis · Urinary Tract Infection · Sexually Transmitted Diseases · Bleeding disorders (Coagulopathy) · Bone Marrow Disorders (Myelodysplasia, Myelodysplastic syndromes) · Heart disease, Cardiovascular disease · Celiac Disease · Hepatitis A · Hepatitis B · Hepatitis C, HCV · Hepatitis · Alpha-1 Antitrypsin Deficiency · Abdominal Pain, Stomach Cramps · Amenorrhea · Anabolic Steroid Abuse · Acetaminophen Overdose · Fever · Reflux (GERD) · Eosinophilic Esophagitis · Epileptic, Phenobarbital usage, Barbiturate Abuse · HIV (AIDS, Human Immunodeficiency) · Cushing's Syndrome · Ganglioneuroma · Porphyria · Kidney Failure, Renal Failure · Kidney Disease, Nephropathy · Polycystic Kidney Disease · Kidney Stone (renal calculi) · Pyelonephritis (Kidney Infection) · Renal Artery Stenosis (Renovascular Hypertension) · Leukemia · Myelofibrosis · Pancreatitis · Hyperactivity, ADHD · E. Coli bacteria · Stress · After Surgery · Pheochromocytoma · Diabetes, Diabetes Mellitus · Type 1 Diabetes · Type 2 Diabetes · Gestational Diabetes · Diabetes Insipidus · Pregnancy · Risk of Miscarriage, Failing Pregnancy · Risk of Preterm delivery, Threatened preterm labor (TPTL) · Ectopic Pregnancy, Eccysis · Preeclampsia, Toxemia of Pregnancy · Oral contraceptives usage · Group B Strep infection · Hay Fever, Allergic rhinitis · Lactose Intolerance, Lactase deficiency (hypolactasia) · Galactose malabsorption(intolerance), Galactosemia · Eczema, Atopic dermatitis · Dermatitis · Poisoning · Emphysema, Chronic Obstructive Pulmonary Disease (COPD) · Coronary Artery Disease Atherosclerosis (Arteriosclerosis) · Cerebrovascular disease Atherosclerosis (Arteriosclerosis) · Peripheral arterial disease Atherosclerosis (Arteriosclerosis) · Genital arterial disease Atherosclerosis (Arteriosclerosis) · Cancer · Amyloidosis · Collagen Vascular Disease · Myositis, polymyositis, dermatomyositis · 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sclerosis (ALS) · Fibromyalgia · Chronic Fatigue Syndrome (CFS) · Lyme Disease · Multiple Sclerosis · Mesothelioma · Primary Biliary Cirrhosis · Irritable bowel syndrome (IBS) · Folate deficiency · Mononeuritis multiplex · Paraneoplastic syndromes · Churg-Strauss syndrome (Wegener's Granulomatosis) · Depression · Blood Transfusion Reaction(Complications) · Vitamin D Deficiency · Endocarditis · Gastroenteritis (Enteritis, Colitis) · Androgenic alopecia (Hair Loss) · Carcinoma, Thyroid cancer · Liver Cancer, Hepatocellular Carcinoma (Hepatoma) · Cirrhosis · Cholecystitis · Delirium tremens, Alcohol withdrawal · Bladder Cancer · Acute Cystitis (Bladder Infection) · Interstitial cystitis (Bladder pain syndrome) · Bladder outlet obstruction (Obstructive uropathy) · Sepsis, Systemic inflammatory response syndrome (SIRS) · Dengue · Acute Bronchitis · Renal ischemia · Pulmonary Edema (Fluid in the Lungs) · Congestive Heart Failure · Cardiomyopathy · Pericarditis · Pulmonary Fibrosis · Cystic Fibrosis (Mucoviscidosis) · Anorexia Nervosa · Osteoporosis · Polycythemia Vera · Stroke, Ischemic Stroke · Chemotherapy · Obesity · Gallstones (Cholelithiasis) · Primary Sclerosing Cholangitis · Bile duct inflammation (Ascending cholangitis) · Essential Hypertension (High Blood Pressure) · Malignant Hypertension (Hypertensive emergencies, High Blood Pressure) · Ulcer (Peptic Ulcer, Stomach Ulcer) · Hemorrhoids (Rectal lump, Piles) · Mumps (Parotitis) · Diverticulosis (Diverticulitis, Diverticular disease) · Mononucleosis (Mono, Epstein-Barr virus) · Erythema multiforme · Polymyalgia Rheumatica · Giant Cell Arteritis (Temporal arteritis, Cranial arteritis) · Parkinson's Disease · Hemolytic Uremic Syndrome (HUS) · Thrombotic Thrombocytopenic Purpura (TTP) · Immune Thrombocytopenic Purpura (ITP,Idiopathic Thrombocytopenic Purpura) · Pertussis · MRSA infection (Methicillin-Resistant Staphylococcus aureus) · Osteomyelitis · Sickle Cell Disease (Sickle cell anemia) · Cytomegalovirus infection (CMV) · Herpes Simplex · Pneumothorax · Atelectasis (Pulmonary collapse) · Dehydration (Volume depletion) · Thrombocytopenia (Thrombopenia) · Gilbert's syndrome (Nonhemolytic Jaundice) · Measles (Rubeola) · Hyperparathyroidism · Mercury Poisoning · Encephalitis · Meningitis · Hemochromatosis (Iron overload) · Turner Syndrome · Essential thrombocytosis (Primary thrombocythemia) · Felty syndrome · Hypogonadism in male (Testicular hypofunction) · Testicular Cancer · Night epilepsy (Nocturnal epilepsy) · Wilson's disease · Priapism · Insulin Resistance (Metabolic syndrome) · Langerhans cell histiocytosis (Hashimoto-Pritzger disease, Histiocytosis X) ·