A placenta previa in which the placental edge just reaches the internal os is more commonly known as:
a. Total c. Complete
b. Partial d. Marginal
ANS: D
A placenta previa that does not cover any part of the cervix is termed marginal. With a total placenta previa, the placenta completely covers the os. When the patient experiences a partial placenta previa, the lower border of the placenta is within 3 cm of the internal cervical os but does not completely cover the os. A complete placenta previa is termed total. The placenta completely covers the internal cervical os.
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