Whitney Houston failed a routine medical check two weeks before she was found dead in a hotel bathtub, RadarOnline.com has exclusively learned.

The legendary pop singer had sought a facelift to be performed by a Beverly Hills, Calif., plastic surgeon.

But Dr. Marc Mani, a board certified plastic surgeon, refused to perform the procedure on Houston after she didn't pass the medical clearance exam that tests a patient's heart, lung and liver, according to a source.

"She was concerned about her appearance and wanted a facelift," the source said.

Dr. Mani refused to confirm to RadarOnline.com whether Houston, 48, who was found dead in the bathtub of her suite at the Beverly Hilton on Feb. 11, had attended his clinic, citing federal medical privacy laws.

Speculation has grown over Houston's cause of death, which has not been determined pending the outcome of toxicology tests that could take up to six weeks.

However, as RadarOnline.com was first to report, preliminary results have revealed sedatives were found in Houston's system.

The tests showed the I Will Always Love You hitmaker had ingested sedatives, particularly benzodiazepines, before she was found in the fourth-floor suite of the hotel.

Detectives were said to have found prescription pill bottles of Xanax, lorazepam, and valium - which are all benzodiazepines - as well as Ibuprofen, Midol and Amoxicillin.

As RadarOnline.com also reported, Houston visited a doctor three times in a period of eight days before her death: on Feb. 2, Feb. 7 and Feb. 10.



Story By Radar Online