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Parvovirus B19 exposure — DRCOG MCQ

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HardAntenatal CareParvovirus B19 exposureDRCOG

At 17 weeks, a teacher reports recent close exposure to a child with slapped-cheek syndrome. She has mild coryzal symptoms and no rash. What test should be requested?

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Correct answer: D — Parvovirus B19 IgG and IgM serology

The best answer is “Parvovirus B19 IgG and IgM serology”. UKHSA guidance advises prompt serum testing for parvovirus B19-specific IgG and IgM after relevant exposure or compatible illness in pregnancy. Results distinguish past immunity, susceptibility and recent infection; confirmed recent infection leads to specialist fetal surveillance for anaemia and hydrops.

Reference: UKHSA: Viral rash in pregnancy: https://www.gov.uk/government/publications/viral-rash-in-pregnancy