What can occur when there is a prolonged contraction during labor?

Prolonged contractions during labor can lead to decreased oxygen delivery to the fetus. This happens because sustained contractions can compress the umbilical cord and reduce blood flow to the placenta, where oxygen exchange occurs. If the contractions are too long or too frequent, the time for adequate blood flow and oxygen exchange between the mother and fetus is compromised, potentially leading to fetal distress.

In cases of decreased oxygen delivery, the fetus may experience a range of complications, including changes in heart rate patterns, which can be monitored through fetal heart rate surveillance. If the oxygen supply is not restored promptly, further complications could arise, emphasizing the importance of timely intervention during labor to ensure the well-being of the fetus.

The other choices do not align with the physiological effects of prolonged contractions, as they suggest outcomes that are contrary to what is observed when fetal oxygenation is compromised. It's essential to monitor labor closely to identify and manage prolonged contractions effectively, thereby protecting fetal health.