Pathogenesis of DKA and HHS
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Questions and Answers

What is the primary metabolic disorder associated with diabetic ketoacidosis (DKA)?

  • Hypoglycemia
  • Hyperglycemia (correct)
  • Lactic acidosis
  • Respiratory acidosis
  • Which of the following best describes the pathogenesis of hyperosmolar hyperglycemic state (HHS)?

  • Excessive calorie intake causing obesity and metabolic syndrome
  • Insufficient insulin leading to high blood glucose without significant ketosis (correct)
  • Primarily due to excessive insulin production
  • Resulting from infections causing acute insulin resistance
  • Which of the following conditions is distinctly characterized by the presence of ketones?

  • Metabolic syndrome
  • Diabetic ketoacidosis (DKA) (correct)
  • Hyperosmolar hyperglycemic state (HHS)
  • Mild hypoglycemia
  • In which scenario is the risk of developing HHS more likely?

    <p>Inadequate fluid intake and/or fever</p> Signup and view all the answers

    What is the typical clinical manifestation of diabetic ketoacidosis (DKA)?

    <p>Kussmaul respirations</p> Signup and view all the answers

    Study Notes

    Diabetic Ketoacidosis (DKA)

    • DKA is characterized by high blood ketone levels and metabolic acidosis.
    • Commonly occurs in individuals with type 1 diabetes but can also occur in type 2 diabetes.
    • Triggers include infections, insulin omissions, and severe stress conditions.

    Hyperosmolar Hyperglycemic State (HHS)

    • HHS is characterized by extremely high blood glucose levels without significant ketosis.
    • More prevalent in patients with type 2 diabetes, often due to inadequate insulin action.
    • Can be precipitated by dehydration, infections, and certain medications.

    Pathogenesis Overview

    • Both DKA and HHS involve insulin deficiency and increased counter-regulatory hormones (glucagon, cortisol).
    • In DKA, insulin deficiency leads to increased lipolysis and ketogenesis.
    • HHS results in severe hyperglycemia and osmotic diuresis, leading to fluid and electrolyte imbalances.

    Clinical Significance

    • Rapid recognition and treatment are essential to prevent complications.
    • DKA can lead to cerebral edema, especially in children.
    • HHS is associated with higher mortality rates compared to DKA.

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    Description

    This quiz explores the pathogenesis of diabetic ketoacidosis (DKA) and hyperosmolar hyperglycemic state (HHS). Understand the biochemical processes and risk factors involved in these serious diabetes-related conditions. Test your knowledge on this critical aspect of diabetes care.

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