Question
A 22-week USG of a pregnant shows marginal placenta. Reassessment by USG is done at?
| A. |
32 weeks
|
| B. |
38 weeks
|
| C. |
28 weeks
|
| D. |
30 weeks
|
Show Answer
|
Correct Answer » A
Explanation
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|
- A low-lying placenta or marginal placenta previa detected during the mid-trimester anomaly scan (18–24 weeks) often resolves as pregnancy progresses due to placental migration (apparent movement resulting from growth of the lower uterine segment).
- Therefore, immediate intervention is not required.
- The recommended approach is to repeat ultrasonography at 32 weeks to reassess the placental location.
- If the placenta remains low-lying or previa at 32 weeks, a further assessment is usually performed at 36 weeks to plan the mode of delivery.
