Meningococcemia
Practice Essentials Meningococcemia is a bloodstream infection (BSI) caused by Neisseria meningitidis. Its wide variety of acute...
Encephalitis
Practice Essentials Encephalitis presents as diffuse or focal neuropsychological dysfunction. Although it primarily involves the brain,...
Hypertensive Emergencies
Uncontrolled Blood Pressure Hypertensive emergencies encompass a spectrum of clinical presentations in which uncontrolled blood pressures...
Hypernatremia in Emergency Medicine
Practice Essentials Sodium levels are tightly controlled in a healthy individual by regulation of urine concentration and an intact...
Initial Evaluation and Management of the Burn Patient
Overview Outcomes for burn patients have improved dramatically over the past 20 years, yet burns still cause substantial morbidity and...
Hyperkalemia in Emergency Medicine
Practice Essentials Hyperkalemia is defined as a potassium level greater than 5.5 mEq/L. [1] It can be difficult to diagnose clinically...
Hypercalcemia in Emergency Medicine
Practice Essentials Hypercalcemia is a disorder that most commonly results from malignancy or primary hyperparathyroidism. [1, 2, 3, 4,...
Malaria
Practice Essentials Malaria is a potentially life-threatening parasitic disease caused by infection with Plasmodium protozoa transmitted...
Adenovirus Infection
Background Adenovirus, a DNA virus, was first isolated in the 1950s in adenoid tissue–derived cell cultures, hence the name. These...
HIV Infection and AIDS
Practice Essentials Human immunodeficiency virus (HIV) is a blood-borne virus typically transmitted via sexual intercourse, shared...
