In intrauterine pregnancies of uncertain viability with a gestational sac without a yolk sac
(with a mean of three orthogonal transvaginal ultrasound measurements< 25 mm), the
suspected pregnancy loss should only be confirmed after a follow-up scan at least 14 days
later shows no embryo with cardiac activity (Grade C). In intrauterine pregnancies of
uncertain viability with an embryo< 7 mm on transvaginal ultrasound, the suspected
pregnancy loss should only be confirmed after a follow-up scan at least 7 days later (Grade …