What is the normal pH range for arterial blood?

The normal pH range for arterial blood is 7.35 to 7.45. This range is crucial for maintaining physiological processes, as deviations from this range can lead to significant issues in the body's acid-base balance.

A pH below 7.35 indicates acidosis, which can result from conditions such as respiratory failure or metabolic disturbances. Conversely, a pH above 7.45 indicates alkalosis, which may arise from factors like hyperventilation or electrolyte imbalances. The body relies on various mechanisms, including respiration and kidney function, to regulate blood pH and maintain homeostasis within this narrow range. Therefore, understanding that a pH of 7.35 to 7.45 is the norm helps in clinical assessments and management of patients who may be experiencing respiratory or metabolic disorders.