A 54-year-old male with a long history of smoking complains of excessive tiredness, shortness of breath, and overall ill feelings. Lab results reveal decreased pH, increased CO₂, and normal bicarbonate ion. The most likely diagnosis is: A) respiratory alkalosis. B) metabolic acidosis. C) respiratory acidosis. D) metabolic alkalosis.

Question

Quizplus · Accepted Answer

The symptoms of excessive tiredness and shortness of breath, along with the lab results of decreased pH (indicating acidosis) and increased CO₂ (a measure of carbon dioxide), suggest that the patient is experiencing respiratory acidosis. This condition is often seen in individuals with chronic obstructive pulmonary disease (COPD), such as those with a long history of smoking. The normal bicarbonate ion level suggests compensation by the kidneys to try and correct the acidosis.

A 54-Year-Old Male with a Long History of Smoking Complains