Odom was found unconscious at a brothel in Crystal, where he spent four days before being rushed to the hospital Tuesday.
Nevada brothels: Things to know in wake of Lamar Odom's collapse
He used cocaine on his first day at the brothel Saturday, employees told 911 dispatchers, according to authorities.
On a 911 call played at a news conference, a woman said she also saw him take 10 herbal supplement tablets over three days.
The brothel's employees told 911 operators that when they found him Tuesday, he was lying in bed on his side with a pinkish fluid coming from his mouth and nose.
He was taken to a hospital