In Abruptio Placentae, Grade 1 is described as Marginal.

• A. Grade 2 Central
• B. Grade 1 Marginal
• C. Grade 0 Asymptomatic
• D. Grade 3 Complete

Answer: (B)

The concept being tested is how placental abruption is graded by the extent and location of placental separation. A mild abruption is described as marginal, meaning the detachment occurs at the edge of the placenta rather than in the center or involving the whole placental surface. This edge involvement often leads to external vaginal bleeding and a uterus that may be tender but not severely rigid, with the mother and fetus typically hemodynamically stable. In contrast, a central separation affects the middle portion of the placenta and can conceal bleeding, producing a firm, tender uterus and potential fetal distress; a complete detachment implies most or all of the placenta has separated, posing a high risk to both mother and fetus. An asymptomatic finding would not reflect an active abruption. Therefore, the description of Grade 1 as Marginal is the best fit.