Mixed acid-base disorders — Flashcards

Flashcard 1: Decreased PCO2 (respiratory alkalosis) results in _____ HCO3- reabsorption

Answer: decreased

Flashcard 2: Acidemia is characterized by arterial pH < _____

Answer: 7.35

Flashcard 3: Which acid-base disturbance is caused by increased HCO3-? _____

Answer: Metabolic alkalosis

Flashcard 4: Acid-base disturbances may affect serum K+ levels via altering activity and directionality of the _____ exchanger

Answer: H+-K+

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Flashcard 5: In _____ cells (in plasma), CO2 is combined with H2O via the enzyme carbonic anhydrase, forming H2CO3

Answer: red blood

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Flashcard 6: What acid-base disturbance is associated with hypokalemia? _____

Answer: Alkalosis

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Flashcard 7: The delta cells of the islets of Langerhans compose 10% of the islet and secrete _____

Answer: somatostatin

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Flashcard 8: The osmotic diuresis in diabetic ketoacidosis may lead to fatal arrhythmias by causing _____ depletion

Answer: total body K+

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Flashcard 9: Ischemia can occur due to _____ (ex. shock)

Answer: hypoperfusion

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Flashcard 10: What are the effects of vomiting, diarrhea or hyperventilation on serum potassium levels? _____

Answer: Decreased (hypokalemia)

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