<P> In the season 15 episode The Book of Abby, long - serving nurse Haleh Adams shows the departing Abby Lockhart a closet wall where all the past doctors and employees have put their locker name tags . Amongst them, the tag "Hathaway" can be seen . </P> <P> Carol Hathaway appears again in Season 15 . She and Doug are now married and practice at the University of Washington Medical Center, where Carol is a transplant coordinator . During the episode, Carol and Doug help a grieving grandmother (Susan Sarandon) donate her grandson's organs . One of the organs, a kidney, is given to "some doctor"; unbeknownst to both Doug and Carol it is their former co-worker and friend John Carter . While on the job she met two current employees at Chicago County General Hospital Dr. Neela Rasgotra and Nurse Manager Sam Taggart . </P> <Table> <Tr> <Td> </Td> <Td> This section needs expansion . You can help by adding to it . (June 2012) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This section needs expansion . You can help by adding to it . (June 2012) </Td> </Tr>

When does carol have her baby on er