A representative for the 82-year-old entertainer told People.com: "She went to seek some medical attention. She's totally fine. She was at a family event on Saturday. She's at home now."
The publicist added that Leachman plans to later this week tape a surprise segment for the dance competition series, which wraps its seventh season next Tuesday.
The Oscar-winning actress is to begin work on Quentin Tarantino's World War II epic, "Inglourious Basterds," next month.