A pregnant client has a rubella titer indicating immunity. Which serology finding confirms immunity?

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Multiple Choice

A pregnant client has a rubella titer indicating immunity. Which serology finding confirms immunity?

Immunity to rubella is demonstrated by rubella-specific IgG antibodies. These IgG antibodies persist for life after prior infection or vaccination and provide protection, so a positive IgG confirms immunity. IgM indicates a recent or active infection, not immunity; IgG negative means no protective immunity; IgM negative alone doesn’t prove immunity. Therefore, the presence of rubella-specific IgG antibodies confirms immunity. If nonimmune, vaccination is given after delivery since the rubella vaccine isn’t given during pregnancy.

Immunity to rubella is demonstrated by rubella-specific IgG antibodies. These IgG antibodies persist for life after prior infection or vaccination and provide protection, so a positive IgG confirms immunity. IgM indicates a recent or active infection, not immunity; IgG negative means no protective immunity; IgM negative alone doesn’t prove immunity. Therefore, the presence of rubella-specific IgG antibodies confirms immunity. If nonimmune, vaccination is given after delivery since the rubella vaccine isn’t given during pregnancy.

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