What is a normal range of pCO2 in the body?

What is a normal range of pCO2 in the body?

• A. 25-35 mmHg
• B. 30-40 mmHg
• C. 35-45 mmHg
• D. 40-50 mmHg

Answer: (C)

The normal range of pCO2, or partial pressure of carbon dioxide in arterial blood, is generally accepted to be between 35 and 45 mmHg. This range indicates the balance between carbon dioxide production in the body and its elimination through the lungs. Maintaining pCO2 within this range is crucial, as it is closely tied to the body's acid-base status. Levels below 35 mmHg may indicate hyperventilation or respiratory alkalosis, whereas levels above 45 mmHg suggest hypoventilation or respiratory acidosis. Therefore, the range of 35-45 mmHg is vital for normal physiological function, reflecting adequate respiratory efficiency and metabolic processes.

The normal range of pCO2, or partial pressure of carbon dioxide in arterial blood, is generally accepted to be between 35 and 45 mmHg. This range indicates the balance between carbon dioxide production in the body and its elimination through the lungs. Maintaining pCO2 within this range is crucial, as it is closely tied to the body's acid-base status.

Levels below 35 mmHg may indicate hyperventilation or respiratory alkalosis, whereas levels above 45 mmHg suggest hypoventilation or respiratory acidosis. Therefore, the range of 35-45 mmHg is vital for normal physiological function, reflecting adequate respiratory efficiency and metabolic processes.