Q. A 26-year-old woman, who recently immigrated to the USA, visits your clinic for preconception counseling. She is in good health and has no medical complaints. However, her vaccination history, especially concerning measles, mumps, and rubella (MMR), is unclear. She is unsure if she has received the measles, mumps, rubella (MMR) vaccine. You consider doing a serology test to determine her immunity status.
What is the most appropriate approach regarding the MMR vaccine for this patient who is planning to become pregnant?