Which of the following pH levels would indicate acidosis?

Which of the following pH levels would indicate acidosis?

• A. 7.50
• B. 7.35
• C. 7.20
• D. 7.40

Answer: (C)

A pH level indicates the acidity or alkalinity of a solution, with the normal range for human blood being approximately 7.35 to 7.45. When the pH drops below this range, it signifies an increase in acidity, which is defined as acidosis. In this context, a pH level of 7.20 reflects an acidic environment, consistent with acidosis. The lower the pH value drops, the more pronounced the acidosis becomes. In contrast, a pH of 7.50 indicates alkalosis, while 7.35 is at the lower limit of normal but still not acidic. A pH of 7.40 lies within the normal range, indicating neither acidosis nor alkalosis. Thus, the designation of a pH level of 7.20 as indicative of acidosis is accurate, as it falls well below the normal pH range, demonstrating a significant shift toward acidity in the blood.

A pH level indicates the acidity or alkalinity of a solution, with the normal range for human blood being approximately 7.35 to 7.45. When the pH drops below this range, it signifies an increase in acidity, which is defined as acidosis.

In this context, a pH level of 7.20 reflects an acidic environment, consistent with acidosis. The lower the pH value drops, the more pronounced the acidosis becomes. In contrast, a pH of 7.50 indicates alkalosis, while 7.35 is at the lower limit of normal but still not acidic. A pH of 7.40 lies within the normal range, indicating neither acidosis nor alkalosis.

Thus, the designation of a pH level of 7.20 as indicative of acidosis is accurate, as it falls well below the normal pH range, demonstrating a significant shift toward acidity in the blood.