What happens to blood pH during fetal acidosis?

During fetal acidosis, blood pH drops below normal due to an increase in the concentration of hydrogen ions in the blood. This condition often arises when the fetus experiences stress, typically resulting from lack of oxygen (hypoxia), which can cause increased anaerobic metabolism. As a result, lactic acid and other acidic metabolites accumulate, leading to a decrease in blood pH. The normal range for fetal blood pH is typically around 7.25 to 7.35, so a drop below this range indicates acidosis. Understanding the significance of these changes in pH is critical for monitoring fetal wellbeing, as improper management of fetal acidosis can lead to further complications for both the mother and the fetus.