This study compares the effects of two medications, ephedrine and norepinephrine, on the baby (fetus) when used to treat low blood pressure (hypotension) during cesarean section under spinal anesthesia. Hypotension is a common side effect during spinal anesthesia, and it can affect the blood flow to the baby. Both medications are commonly used to manage this condition. The goal of the study is to determine which medication is more effective and safer for the baby, by measuring the pH level in the umbilical artery after birth. The study will also examine maternal blood pressure, heart rate, and the baby's Apgar scores.
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Incidence of fetal acidosis (umbilical artery pH < 7.20)
Timeframe: Within 5 minutes after birth