What is the normal blood pH range in adults?

The normal blood pH range in adults is typically between 7.35 and 7.45. This range is crucial for maintaining proper physiological functions in the body, as even slight deviations can lead to significant metabolic disturbances.

Blood pH is a measure of how acidic or basic the blood is, and maintaining a slightly alkaline state is essential for enzyme activities, oxygen transport, and overall homeostasis. If the pH falls below 7.35, it indicates acidemia, while a pH above 7.45 suggests alkalemia. These conditions can arise from various metabolic or respiratory issues and can have critical effects on the body's functions.

In contrast, the other choices represent ranges that are either too low or too high for normal adult blood pH, which would not support optimal biological processes.