A 60-Year-Old Woman Complains of Persistent Breathing Difficulties

question 26

Multiple Choice

A 60-year-old woman complains of persistent breathing difficulties. Her laboratory studies show: pH 7.36; [H⁺] 44 nmol/L; PaCO₂ 55 mmHg; [HCO₃^-] 30 mmol/L. Which of the following is the most likely diagnosis?

• A) Combined metabolic acidosis and respiratory acidosis
• B) Primary respiratory acidosis, secondary metabolic alkalosis, full pH compensation
• C) Primary respiratory acidosis, secondary metabolic alkalosis, partial pH compensation
• D) Pure metabolic acidosis without pH compensation
• E) Pure respiratory acidosis

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