The family of Joan Rivers is considering legal action against the clinic where she was getting throat surgery when she went into cardiac arrest.

Daughter Melissa Rivers tells the "New York Daily News," doctors are working to bring her mother out of a medially-induced coma. The 81-year-old remains on life support and family members will have to decide how long to keep her on a breathing machine. Doctors are expected to assess the level of brain damage today to try to determine whether Rivers will end up in a vegetative state.

[Metro Networks]