[1][2][3] McGrath was formerly a newsreader at TVQ-0 and presented a national breakfast news/finance show called TVAM on the Seven Network in 1988 from Sydney and the following year Kay joined the Seven News Brisbane team in 1989, has had a distinguished career by reporting on the Fitzgerald Inquiry, as well as the Brisbane airport hijacking, and reporting on-location after Cyclone Larry hit Innisfail, and on the Sunshine Coast in the aftermath of Steve Irwin's death.
[4] She has reported for and co-hosted a series of documentaries on local social issues, including the acclaimed special, "Behind Closed Doors: Child Abuse in Queensland".
In January 2013, McGrath and Young were demoted to Friday and Saturday anchors of Seven News Brisbane, after more than 10 years on weeknights, with Sharyn Ghidella and Bill McDonald taking over Sunday to Thursday nights.
A campaigner against child abuse, she is patron of the organisation, Protect All Children Today (PACT), and an ambassador for Act for Kids.
For a number of years McGrath has also chaired the committee that organises Child Protection Week activities in Queensland during September.