Bleeding is fetal origin in:
**Core Concept**
Bleeding in pregnancy can be of either maternal or fetal origin. Maternal bleeding is usually due to placental abruption, placenta previa, or uterine rupture. Fetal bleeding, on the other hand, is often related to vasa previa or cord rupture.
**Why the Correct Answer is Right**
Fetal origin bleeding in pregnancy is typically due to rupture of fetal blood vessels in the umbilical cord or placenta, leading to hemorrhage. This type of bleeding is often associated with vasa previa, where fetal blood vessels are exposed and fragile, making them susceptible to rupture. The bleeding can be life-threatening for the fetus and requires immediate medical attention.
**Why Each Wrong Option is Incorrect**
**Option A:**
This option is incorrect as it does not accurately describe a condition where bleeding is of fetal origin.
**Option B:**
This option is incorrect as it describes a condition where bleeding is of maternal origin, specifically due to placental abruption.
**Option C:**
This option is incorrect as it describes a condition where bleeding is of maternal origin, specifically due to placenta previa.
**Clinical Pearl / High-Yield Fact**
In cases of suspected fetal origin bleeding, it is essential to perform an ultrasound to visualize the fetal cord and placenta, and to assess the fetal well-being.
**Correct Answer:** D.