Acid-Base Imbalances: Metabolic & Respiratory Acidosis
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Questions and Answers

What is a primary cause of metabolic acidosis?

  • Hyperventilation leading to decreased CO2
  • Increased Na+ reabsorption from diuretics
  • Increased acid loss due to vomiting
  • Defect in kidney's ability to excrete H+ (correct)
  • What compensatory mechanism occurs in respiratory acidosis?

  • Hyperventilation to increase oxygen levels
  • Increased HCO3+ excretion
  • Reduced H+ retention
  • Retention of bicarbonate (HCO3+) (correct)
  • Which treatment is commonly used for metabolic acidosis?

  • Mechanical ventilation
  • Infusion of isotonic saline
  • Intravenous bicarbonate solutions (correct)
  • Oral ammonium chloride
  • What is a potential cause of metabolic alkalosis?

    <p>Loss of HCl due to vomiting</p> Signup and view all the answers

    During which condition would you expect to see bradypnea as a compensatory response?

    <p>Alkalosis metabolic</p> Signup and view all the answers

    Which of the following symptoms is associated with respiratory alkalosis?

    <p>Increased lactic acid production</p> Signup and view all the answers

    What is the treatment for alkalosis respiratory?

    <p>Use of a plastic bag to breathe CO2 enriched air</p> Signup and view all the answers

    Which condition represents a respiratory problem leading to acidosis?

    <p>Pulmonary edema</p> Signup and view all the answers

    What common response is seen in the kidney as compensation for metabolic acidosis?

    <p>Increased H+ excretion and bicarbonate retention</p> Signup and view all the answers

    Which of the following activities typically leads to respiratory alkalosis?

    <p>High altitude breathing</p> Signup and view all the answers

    Study Notes

    Acid-Base Imbalances: Metabolic Acidosis

    • Causes:

      • Renal dysfunction impairing H+ excretion and HCO3- reabsorption
      • Loss of bicarbonate (e.g., diarrhea, fistula)
      • Increased acid production (e.g., diabetes, starvation, certain drugs)
      • Toxic ingestion (e.g., methanol, salicylates)
    • Compensation:

      • Increased breathing rate and depth (hyperventilation)
      • Kidneys attempt to increase bicarbonate reabsorption and decrease H+ excretion
    • Treatment:

      • Administering sodium bicarbonate
      • Correcting the underlying cause
      • Providing isotonic electrolyte solutions

    Acid-Base Imbalances: Respiratory Acidosis

    • Causes:

      • Reduced lung function (e.g., pneumonia, pulmonary edema, asthma)
      • Drug overdose suppressing respiratory center
      • Conditions leading to increased CO2 in exhaled air
    • Compensation:

      • Kidneys attempt to retain bicarbonate and excrete H+
    • Treatment:

      • Improving lung function (e.g., ventilatory support)
      • Correcting associated issues

    Acid-Base Imbalances: Metabolic Alkalosis

    • Causes:

      • Loss of stomach acid (e.g., vomiting)
      • Diuretic use increasing sodium reabsorption and hydrogen excretion
      • Excessive use of bicarbonate or alkaline drugs
      • Aldosteronism imbalance
    • Compensation:

      • Reduced breathing rate and depth (hypoventilation)
      • Kidneys attempt to reduce bicarbonate reabsorption and increase excretion of H+
    • Treatment:

      • Giving chloride to replace lost ions
      • Correcting underlying conditions

    Acid-Base Imbalances: Respiratory Alkalosis

    • Causes:

      • Hyperventilation (e.g., anxiety, panic attacks)
      • High altitude
      • Some drug overdose
    • Compensation:

      • Kidneys attempt to excrete bicarbonate
    • Treatment:

      • Addressing the cause of hyperventilation
      • In some cases, breathing retraining

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    Description

    Test your knowledge on acid-base imbalances, focusing on metabolic and respiratory acidosis. This quiz covers causes, compensation mechanisms, and treatment options for these conditions. Perfect for students in medical or health-related fields.

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