Jenner has reportedly been by Odom's bedside at Sunrise Hospital in Las Vegas, Nevada where he is in critical condition. Odom's ex Khloe Kardashian has been there as well along with Kim Kardashian, and Odom's father Joe.
Kendall Jenner also appeared to tweet about Odom's condition, writing, "Please don't go."
ET confirmed that the Keeping Up With the Kardashians crew is not filming while the family is at the hospital.
The Nye County, Nevada Sheriff's Office gave a press conference on Wednesday afternoon, releasing audio from the 911 call. The caller told 911 operators that there was fluid coming from the Odom's mouth that he described as "not a deep red" but more of a "pink-ish" color.
Odom is believed to have been at the brothel for a four-day stretch, staying in the establishment's High Roller Suite, which starts at $10K per night. A source close to Odom told ET that the 35-year-old has suffered some organ failure, and that while his condition has improved, "it is still dire."