<P> Bay Madeline Kennish , a teenage girl from the wealthy Kansas City suburb of Mission Hills , Kansas , discovers from a school lab assignment that her AB blood type is incompatible with her type A / O parents John and Kathryn . Genetic testing confirms Bay is not the Kennishes ' biological daughter . She uses the phrase `` real parents , '' but is informed that `` biological '' is the preferred term . It is revealed that the hospital mistakenly switched Bay ( who was actually born Daphne Paloma Vasquez ) with the Kennishes ' newborn daughter , who is raised by her single mother Regina and grandmother Adriana in the low - income neighborhood of East Riverside , Missouri . Daphne is deaf , having lost her hearing as a result of contracting meningitis at age three . The Kennishes invite Daphne and Regina to their home , and after learning that Regina is struggling financially , propose that they move into their guest house with Adriana , an offer that Regina accepts . </P>
<P> Bay Madeline Kennish , a teenage girl from the wealthy Kansas City suburb of Mission Hills , Kansas , discovers from a school lab assignment that her AB blood type is incompatible with her type A / O parents John and Kathryn . Genetic testing confirms Bay is not the Kennishes ' biological daughter . She uses the phrase `` real parents , '' but is informed that `` biological '' is the preferred term . It is revealed that the hospital mistakenly switched Bay ( who was actually born Daphne Paloma Vasquez ) with the Kennishes ' newborn daughter , who is raised by her single mother Regina and grandmother Adriana in the low - income neighborhood of East Riverside , Missouri . Daphne is deaf , having lost her hearing as a result of contracting meningitis at age three . The Kennishes invite Daphne and Regina to their home , and after learning that Regina is struggling financially , propose that they move into their guest house with Adriana , an offer that Regina accepts . </P>
switched at birth how did they find out
switched at birth how did they find out
discovers from a school lab assignment that her AB blood type is incompatible with her type A / O parents
discovers from a school lab assignment that her AB blood type is incompatible with her type A / O parents