Pancytopenia
(1) Departments of Internal Medicine & Psychiatry, Yale University School of Medicine, New Haven, CT, USA It is defined as a decrease in all blood cell lines resulting in…
Creatine Kinase Elevation and Neuroleptic Malignant Syndrome
(1) Departments of Internal Medicine & Psychiatry, Yale University School of Medicine, New Haven, CT, USA Creatine kinase (CK) is an enzyme released into serum in response to muscle…
Myoclonus and Serotonin Syndrome
(1) Departments of Internal Medicine & Psychiatry, Yale University School of Medicine, New Haven, CT, USA Myoclonus is a brief contraction of a muscle or group of muscles. Pathology…
Platelet Function Disorders
(1) Departments of Internal Medicine & Psychiatry, Yale University School of Medicine, New Haven, CT, USA Disorders of platelet function include a disruption in platelet function that is independent…
Drug-Induced Cutaneous Reactions
(1) Departments of Internal Medicine & Psychiatry, Yale University School of Medicine, New Haven, CT, USA Cutaneous reactions are a common adverse effect of medications. Most are mild but…
Eosinophilia
(1) Departments of Internal Medicine & Psychiatry, Yale University School of Medicine, New Haven, CT, USA Eosinophilia refers to an absolute eosinophil count >500 cells/μL. A value >5000 cells/μL…
Thrombocytopenia
(1) Departments of Internal Medicine & Psychiatry, Yale University School of Medicine, New Haven, CT, USA A platelet count of <150,000 cells/μL is considered thrombocytopenia. However, 2.5% of the…
Nephrolithiasis
(1) Departments of Internal Medicine & Psychiatry, Yale University School of Medicine, New Haven, CT, USA Kidney stones are solid particle formations in the urinary tract. They are not…
