What occurs during hypoventilation?

What occurs during hypoventilation?

• A. Decreased PCO2
• B. Increased PCO2
• C. CPOD
• D. Increase PO2

Answer: (B)

During hypoventilation, the amount of air moving in and out of the lungs is too small to effectively eliminate the carbon dioxide produced by the body. Because CO2 isn’t being exhaled efficiently, it accumulates in the blood, raising the arterial PCO2. This elevated PCO2 is the hallmark of hypoventilation. So, the best answer is increased PCO2. Decreased PCO2 would come from overbreathing or hyperventilation. COPD is a chronic lung disease and not the immediate result of a ventilation deficit. Increasing PO2 is not typical here; oxygen levels usually fall or stay unchanged with hypoventilation, rather than rise.

During hypoventilation, the amount of air moving in and out of the lungs is too small to effectively eliminate the carbon dioxide produced by the body. Because CO2 isn’t being exhaled efficiently, it accumulates in the blood, raising the arterial PCO2. This elevated PCO2 is the hallmark of hypoventilation.

So, the best answer is increased PCO2. Decreased PCO2 would come from overbreathing or hyperventilation. COPD is a chronic lung disease and not the immediate result of a ventilation deficit. Increasing PO2 is not typical here; oxygen levels usually fall or stay unchanged with hypoventilation, rather than rise.