Multiple choice

A woman is having a twin pregnancy of 14 weeks' gestationtOne placenta and one separate amniotic sac are identified. In which one of the following scenarios is this most likely to arise?

  1. Ovulation induction

  2. ICSI with single embryo transfer

  3. Natural conception

  4. Family history of multiple pregnancy

  5. Maternal age 35–39 years

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This increases the risk of monochorionic monoamniotic (MCMA) twins by 5 times;  the reasons for this are poorly understood.