Question

An abnormal implantation of the placenta of the lower half of the uterine wall, resulting in a partial or complete coverage of the cervical opening is called?

1) Placenta previa
2) Placenta accreta
3) Placenta increta
4) Placenta percreta

Answer 1

An abnormal implantation of the placenta that results in the partial or complete coverage of the cervical opening is known as placenta previa.

Step-by-step explanation:

Placenta previa is an abnormal implantation of the placenta in the lower uterine wall, partially or completely covering the cervical opening. This condition arises when the embryo implants too closely to the internal os of the uterus. Placenta previa, occurring in approximately 0.5 percent of pregnancies, poses a risk of complications, particularly antepartum hemorrhage. This condition becomes a significant cause of vaginal bleeding after the 24th week of pregnancy but before childbirth.

The proximity of the placenta to the cervix can lead to disruptions in the normal uterine blood supply, resulting in bleeding. Early diagnosis through ultrasound is crucial for appropriate management and monitoring of placenta previa, as it may necessitate interventions such as bed rest or, in severe cases, delivery by cesarean section to prevent complications for both the mother and the baby.