Khloe Kardashian literally dropped everything and ran to be by estranged husband Lamar Odom's side on Tuesday afternoon.

Khloe was at a photo shoot in Beverly Hills, and as soon as pal Malika Haqq showed up and broke the news of Lamar's condition, the reality starlet skipped out and caught the next plane to Las Vegas. She was joined by big sister Kim and their mom Kris Jenner.

As we previously reported, Lamar was rushed to the hospital after being found unconscious at the Bunny Ranch brothel in Pahrump, Nevada. Though it was initially reported that he was airlifted to Vegas, the Nye County Sheriff told TMZ that medics didn't put the former NBA star in a helicopter due to his height. Instead, he was driven in an ambulance.

Radar says that Lamar was on a "three-day booze and pill bender," but a source tells TMZ, "The girls didn't see him do anything but drink and pop herbal Viagra." A woman at the brothel found Lamar unconscious, and he had a "mucus-type liquid coming out of his nose and mouth," according to TMZ. The website also reported that Lamar was intubated, which means he was unable to breathe on his own.