Management of Life-Threatening Acid-Base Disorders Quiz

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Questions and Answers

What is the main reason for decreasing Paco2 slowly during anesthesia?

  • To promote the excretion of bicarbonate through the kidneys
  • To facilitate the accumulation of bicarbonate in the body
  • To prevent renal tubular elimination of bicarbonate
  • To allow sufficient time for renal tubular reabsorption of bicarbonate (correct)

What electrolyte disturbance can lead to metabolic alkalosis when associated with respiratory acidosis?

  • Decreased serum sodium
  • Decreased serum magnesium
  • Decreased serum potassium
  • Decreased serum chloride (correct)

Which condition may stimulate renal tubules to excrete hydrogen and potentially cause metabolic alkalosis?

  • Hypokalemia (correct)
  • Hypercalcemia
  • Hypernatremia
  • Hyperkalemia

What is the most common cause of acute respiratory alkalosis during the perioperative period?

<p>Iatrogenic hyperventilation (A)</p> Signup and view all the answers

What is the major adverse consequence of severe systemic alkalosis (pH > 7.60) according to the text?

<p>Ventricular dysrhythmias (C)</p> Signup and view all the answers

How is respiratory alkalosis defined in terms of Paco2 and pH levels?

<p>Paco2 less than 40 mmHg, pH greater than 7.35 (B)</p> Signup and view all the answers

How does acidosis affect cardiac responsiveness to catecholamines when the pH is less than 7.1 according to the text?

<p>Decreases compensatory inotropic effects (C)</p> Signup and view all the answers

What is the primary focus of treatment for respiratory alkalosis?

<p>Correcting the underlying cause of alveolar hyperventilation (A)</p> Signup and view all the answers

Which group is most susceptible to the detrimental effects of acidosis according to the text?

<p>Patients with underlying left ventricular dysfunction (D)</p> Signup and view all the answers

What effect does alkalosis have on the production of lactic acid and ketoacids according to the text?

<p>Increases production of lactic acid and ketoacids (D)</p> Signup and view all the answers

How does alkalosis impact ventilation according to the text?

<p>Alkalosis depresses ventilation (D)</p> Signup and view all the answers

What contributes to the neurologic abnormalities associated with systemic alkalosis according to the text?

<p>Decreased serum ionized calcium concentration (C)</p> Signup and view all the answers

Which of the following is a potential consequence of chronic alkalosis?

<p>Increased threshold for angina pectoris (C)</p> Signup and view all the answers

What is the most likely cause of respiratory acidosis during the perioperative period?

<p>Hypoventilation (B)</p> Signup and view all the answers

Which electrolyte imbalance is a known consequence of respiratory acidosis?

<p>Hyperkalemia (B)</p> Signup and view all the answers

What effect does chronic alkalosis have on the release of oxygen to tissues?

<p>Tightening the binding of oxygen to hemoglobin (C)</p> Signup and view all the answers

Which symptom is associated with decreased cerebral blood flow as a consequence of alkalosis?

<p>Seizures (C)</p> Signup and view all the answers

What is the pathophysiological effect of chronic alkalosis on erythrocytes?

<p>Decreased 2,3-diphosphoglycerate concentration (A)</p> Signup and view all the answers

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