Doodson was born in Queensland, Australia in 1945, her mother was an artist and her father was a maintenance officer.
In 1970 Doodson began working as a registered nurse and soon went into television work as a medical advisor on many TV shows. She was also the medical advisor on Blue Heelers.
Her last television appearance was in the Blue Heelers finale in early 2006. She made an appearance in Neighbours in August 2007