The Los Angeles County Coroner's office will make a final determination of what caused the death of actress Brittany Murphy after toxicology results are completed in the next two months, officials said today. 
 
 The medical examiner has completed Murphy's autopsy, but an official cause of death will be deferred until tests determine what substances, if any, were in her system that might have contributed to her death, said Ed Winter, a spokesman for the coroner's office. 
 
 Murphy, 32, died Sunday of a sudden cardiac arrest. A law enforcement source, who declined to be named because of the ongoing investigation, said Murphy suffered internal bleeding before her death. 
 
 It was unclear if an underlying medical condition might have caused or contributed to her death, officials said. Murphy, who appeared in "Clueless" and "8 Mile," was taking prescription drugs for medical ailments, authorities said. 
 
 LAPD officials said today that they have finished their initial investigation into Murphy's death and concluded there were no signs that a crime occurred. 
 
 -- Andrew Blankstein 
 
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 Brittany Murphy Autopsy -- 'Normal' 
 
 TMZ has learned's autopsy is complete. There were no signs of foul play, we've learned, and there was nothing that pointed to a cause of death. The cause of death has been "" pending other tests.Sources say thewill wait for the toxicology report, as well as the histopathology (study of her organs and tissues) and neuropathology (study of her brain).One source said the body appeared "normal." In addition, we're told she did not appear overly thin -- in contrast to some photos that surfaced several weeks ago. There was no evidence of trauma to the body.We're told the Coroner will not determine cause of death until the other reports are submitted -- in 4 to 6 weeks.One issue the Coroner is interested in -- what prescription drugs were in Brittany Murphy's system.
– Brittany Murphy's autopsy is complete, but the LA county coroner's office won't determine an official cause of death until after the completion of toxicology tests, which could take as long as 2 months. The 32-year-old actress, who died yesterday after suffering cardiac arrest, was bleeding internally before her death, a source tells the Los Angeles Times. The body appeared "normal" and not unusually thin, another source tells TMZ.