A Pregnant Woman Had Contact with Her Nephew Who Was

Multiple Choice

A pregnant woman had contact with her nephew who was just diagnosed with a rubella infection.Acute and convalescent samples were taken,which resulted in an acute titer of 1:16 and a convalescent titer of 1:32.Which one of the following comments explains the risk to the fetus?

A) The risk is low;a fourfold rise in titer is not present.
B) The risk is high;more than a fourfold rise is present in titer.
C) The risk is high because both titers are elevated.
D) Rubella is not a congenital disease;therefore the test should not have been ordered.