The respiratory therapist is asked to interpret the following ABG results from a patient with persistent diarrhea: Parameter Value pH 7.32 PaCO2 35 torr PaO2 90 torr HCO3- 16 mEq/l BE -8 Which of the following conditions is MOST likely to cause this ABG result?
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✓ Correct answer: A. Diarrhea-induced metabolic acidosisAnswer: Diarrhea-induced metabolic acidosis This ABG result indicates metabolic acidosis. Persistent diarrhea can cause a significant loss of bicarbonate, leading to metabolic acidosis. Intractable vomiting typically causes metabolic alkalosis. COPD exacerbation usually results in respiratory acidosis. Severe anxiety causing hyperventilation typically results in respiratory alkalosis.
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