The differential diagnosis of acute lymphadenopathy is broad. A patient's medical history and review of systems is important in narrowing this differential. Assess the size, location, and character of ...

Only patients who have a positive test result for H pylori infection should be treated. The optimal timing of H pylori eradication in asymptomatic individuals is during the early stage when mucosal ...

Bartter syndrome represents a set of closely related, autosomal recessive renal tubular disorders characterized by hypokalemia, hypochloremia, metabolic alkalosis, and hyperreninemia, with ...

The most common presentation is an acute, symmetric, exanthematous, asymptomatic cutaneous eruption that develops over several days. (See the image below.) The eruption typically lasts at least 10 ...

Author: Eric L Greidinger, MD; more ...

The American Society of Anesthesiologists (ASA) Physical Status Classification System is a risk-stratifying system used mainly by anesthesiologists to help predict preoperative risks; it has been in ...

Author: Pranay Kathuria, MD, MACP, FASN, FNKF; Chief Editor: Stephen L Nelson, Jr, MD, PhD, FAACPDM, FAAN, FAAP, FANA more ...

In individuals with MG, the predominant autoantibody targets nicotinic AChR, composed of α, β, δ, and ε subunits (adult-type AChR-ε) or α, β, δ, and γ subunits (fetal-type AChR-γ). [4] An image ...

AVP is an nonapeptide similar in structure to oxytocin. AVP is synthesized in the cell bodies of neurons in the supraoptic and paraventricular nuclei of the anterior hypothalamus as a precursor ...

The following organizations have released guidelines for the management of psychogenic nonepileptic seizures (PNES). Key diagnostic and treatment recommendations have been reviewed and integrated ...

Febrile seizures are the most common seizure type in children, typically occurring between ages 6 months and 5 years in association with fever (temperature ≥ 100.4°F or 38°C), without evidence of ...

Triglycerides: Males: 40-160 mg/dL or 0.45-1.81 mmol/L; females: 35-135 mg/dL or 0.40-1.52 mmol/L Total cholesterol: < 200 mg/dL or < 5.2 mmol/L High-density lipoprotein: Females: > 55 mg/dL or > 0.91 ...