Today’s Quiz 05/01/2021- Your daily dose of Ob Gyn served fresh… 2 Comments / Blog / By obgninja 27 12 Z4 Placenta Praevia 1 / 2 1. Q3 Placenta Praevia A woman presents at 18 weeks pregnancy for ultrasound scan. On ultrasound, the placenta appears to be low lying. A transvaginal ultrasound confirms that the lower edge of the placenta is 3 cm from internal os. What is the diagnosis? A. Normal location of placenta. B. Placenta praevia C. Placenta previa type 2 D. Low lying placenta - For pregnancies at more than 16 weeks of gestation the term low-lying placenta should be used when the placental edge is less than 20 mm from the internal os on transabdominal or transvaginal scanning (TVS). If the distance between the internal os and the placental edge is 20 mm or more on TVS, the placental location should be recorded as normal and managed as per routine The term placenta praevia should be used when the placenta lies directly over the internal os. 2 / 2 2. A woman presents presents for her routine anomaly scan. Ultrasound shows placenta 1 cm from internal os. You inform her that the placenta is low lying. When will her follow up scan be scheduled. A. Transabdominal scan( TAS ) at 24 to 26 weeks B. Transabdominal scan(TAS) and Transvaginal scan ( TVS) at 28 weeks C. Transabdominal scan( TAS) and Transvaginal scan( TVS) at 32 weeks . D. Transabdominal scan( TAS ) 34 weeks If the placenta is thought to be low lying (less than 20 mm from the internal os) or praevia (covering the os) at the routine fetal anomaly scan, a follow-up ultrasound examination including a TVS is recommended at 32 weeks of gestation to diagnose persistent low-lying placenta and/or placenta praevia. Use of TVS- to accurately see the placental edge. Also, cervical length is a predictor of antepartum bleeding and emergency preterm caesarean section in placenta praevia. Women with a cervical length of less than 31 mm have a 16 times higher risk of emergency caesarean section due to massive haemorrhage. Your score is LinkedIn Facebook Twitter Restart quiz Give me some stars ! ⭐⭐⭐⭐⭐ ( Tell me whether you like the daily quiz) .Your response is anonymous. Send feedback
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