A 23-year-old woman at 28 weeks of gestation presents to the GP with a non-itchy maculopapular rash and arthralgia. She works as a nursery teacher. He...

Question

A 23-year-old woman at 28 weeks of gestation presents to the GP with a non-itchy maculopapular rash and arthralgia. She works as a nursery teacher. Her booking rubella IgG was positive (immune). She is concerned about parvovirus B19. Blood results show: parvovirus IgG positive and IgM positive. Which is the single most important next step?

Accepted Answer

Refer urgently to the fetal medicine unit for serial ultrasound monitoring for fetal anaemia and hydrops

Answer

Reassure as the positive IgG indicates past immunity

Answer

Prescribe oral aciclovir

Answer

Administer intravenous immunoglobulin

Answer

No further action needed as the risk to the fetus is negligible after 20 weeks

uk-drcog MCQ (SBA): Acute Parvovirus B19 Infection - Fetal Monitoring