Final answer:
Cervical cerclage at 12 weeks, fetal echocardiography at 20 weeks, and weekly progesterone injections starting at 16 weeks should be performed for a pregnant mother with a H/O of spontaneous pre-term birth.
Step-by-step explanation:
What should be performed and when for a pregnant mother with a H/O of spontaneous pre-term birth?
- Cervical cerclage at 12 weeks: This procedure involves placing a stitch around the cervix to provide support and prevent it from opening too early. It is usually done at around 12 weeks of pregnancy.
- Fetal echocardiography at 20 weeks: This is a specialized ultrasound that examines the baby's heart structure and function. It is typically performed around 20 weeks of pregnancy.
- Weekly progesterone injections starting at 16 weeks: Progesterone injections can help reduce the risk of preterm birth. They are usually started around 16 weeks of pregnancy and continued until at least 36 weeks.