30th April 2024

A 32-year-old woman, G2P1, experiences significant bleeding immediately following a spontaneous vaginal delivery at 39 weeks gestation.

A 32-year-old woman, G2P1, experiences significant bleeding immediately following a spontaneous vaginal delivery at 39 weeks gestation. The placenta is delivered intact, and uterine atony is suspected. Initial management with uterine massage and oxytocin infusion is started. Despite these measures, the bleeding continues.

Which is the most appropriate initial diagnostic investigation to evaluate for disseminated intravascular coagulation (DIC) in this patient?