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Related Concept Videos

Diabetic Ketoacidosis ll: Pathophysiology01:22

Diabetic Ketoacidosis ll: Pathophysiology

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Diabetic ketoacidosis (DKA) is a metabolic emergency characterized by hyperglycemia, ketonemia, and metabolic acidosis. It results from severe insulin deficiency and an excess of counterregulatory hormones, leading to uncontrolled lipolysis, ketogenesis, and widespread electrolyte and fluid disturbances.Pathophysiology The central event in DKA is a profound loss of insulin action. Without insulin, glucose uptake in insulin-dependent tissues is impaired, while hepatic glucose production...
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Diabetic Ketoacidosis l: Introduction01:25

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DefinitionDiabetic ketoacidosis (DKA) is an acute, life-threatening complication of diabetes mellitus, characterized by a triad of hyperglycemia (blood glucose >250 mg/dL), ketonemia or ketonuria, and metabolic acidosis (arterial pH <7.30 and serum bicarbonate <18 mEq/L). It results from insulin deficiency combined with elevated levels of counterregulatory hormones—glucagon, catecholamines, cortisol, and growth hormone—leading to increased lipolysis, hepatic...
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Phenylketonuria (PKU) is a protein metabolism disorder characterized by high blood levels of the amino acid phenylalanine. This results from a mutation in the gene responsible for phenylalanine hydroxylase, an enzyme that converts phenylalanine into tyrosine. When this enzyme is deficient, phenylalanine builds up in the blood, leading to symptoms such as vomiting, rashes, seizures, growth deficiency, and severe mental retardation. An early diagnosis and a diet restricting phenylalanine intake...
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Metabolic States of the Body: The Postabsorptive State01:18

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The postabsorptive state usually starts about four hours after a meal and lasts until the next meal is eaten. During this time, the digestive system stops absorbing nutrients, and the body uses stored energy reserves to maintain stable blood glucose levels.
Initially, glycogen stored in the liver is broken down to release glucose into the bloodstream, while glycogen in the muscles is broken down to supply glucose for energy directly within the muscle cells. As glycogen stores diminish,...
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Hepatic Encephalopathy01:29

Hepatic Encephalopathy

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DefinitionHepatic encephalopathy is a reversible neurologic syndrome that results from advanced liver dysfunction or portosystemic shunting. It leads to disturbances in cognition, behavior, and motor function due to the brain’s exposure to gut-derived toxins that the liver fails to detoxify.EtiologyThis condition develops either in the setting of acute fulminant hepatitis or progressively during chronic liver disease, such as cirrhosis and portal hypertension. Portosystemic...
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Complications of Diabetes Mellitus01:22

Complications of Diabetes Mellitus

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Diabetes mellitus is a chronic metabolic disorder characterized by persistent hyperglycemia due to insulin deficiency, resistance, or both. Prolonged hyperglycemia disrupts metabolic homeostasis and leads to acute and chronic complications.Acute ComplicationsAcute complications result from sudden metabolic imbalance.Diabetic ketoacidosis (DKA) mainly appears in type 1 diabetes but may also develop in type 2 diabetes, particularly under extreme stress. It arises from severe insulin deficiency,...
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Chronic Intermittent Ethanol Vapor Exposure Paired with Two-Bottle Choice to Model Alcohol Use Disorder
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Alcoholic metabolic emergencies.

Michael G Allison1, Michael T McCurdy1

  • 1Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Maryland School of Medicine, 110 South Paca Street, 2nd Floor, Baltimore, MD, USA; Department of Emergency Medicine, University of Maryland School of Medicine, 110 South Paca Street, 6th Floor, Baltimore, MD 21201, USA.

Emergency Medicine Clinics of North America
|April 29, 2014
PubMed
Summary
This summary is machine-generated.

Ethanol intoxication can cause metabolic problems, contrary to the myth that it always leads to low blood sugar. This review covers alcohol-related metabolic issues, including electrolyte imbalances and ketoacidosis.

Keywords:
Alcohol encephalopathyAlcoholic ketoacidosisBeer potomaniaEthanol intoxicationKorsakoff syndromeWernicke encephalopathy

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Area of Science:

  • Internal Medicine
  • Toxicology
  • Emergency Medicine

Background:

  • Ethanol intoxication is a common presentation in emergency departments.
  • Alcohol use is associated with diverse metabolic complications.
  • Understanding these derangements is crucial for effective patient management.

Purpose of the Study:

  • To review the metabolic consequences of ethanol intoxication.
  • To clarify common misconceptions regarding alcohol and hypoglycemia.
  • To provide guidance on managing electrolyte disturbances, ketoacidosis, and encephalopathy.

Main Methods:

  • Literature review of studies on ethanol intoxication and metabolic derangements.
  • Discussion of clinical presentations and treatment strategies.
  • Emphasis on differentiating alcohol-induced conditions from other causes.

Main Results:

  • Ethanol intoxication is not consistently associated with hypoglycemia; it can occur but is not a universal outcome.
  • Electrolyte abnormalities, such as hypomagnesemia and hypokalemia, are common and require specific management.
  • Alcoholic ketoacidosis is a distinct metabolic state often precipitated by binge drinking and poor nutrition.
  • Alcoholic encephalopathy presents with neurological deficits and requires prompt recognition and intervention.

Conclusions:

  • Metabolic derangements are significant complications of ethanol intoxication.
  • Accurate diagnosis and management of these conditions are essential in the emergency setting.
  • Dispelling the hypoglycemia myth and addressing electrolyte imbalances, ketoacidosis, and encephalopathy are key clinical priorities.