What blood pH level indicates acidosis?

A blood pH level between 7.25 and 7.35 is indicative of acidosis. The normal pH range for human blood is between 7.35 and 7.45. When the pH drops below this normal range, it signifies a state of acidosis, which can be caused by various conditions such as respiratory failure or metabolic disorder.

The reason this range is clinically significant lies in the fact that pH levels outside of the normal range can dramatically affect physiological processes. Acidosis can lead to interference in oxygen delivery to tissues, enzyme function, and overall cellular metabolism. Recognizing this pH range is crucial for diagnosing and managing patients with potential acid-base imbalances, enabling timely intervention to correct the underlying cause and restore normal pH balance.

Other pH ranges provided in the options reflect either normal or alkalotic conditions, which do not align with the definition of acidosis.