Earlier this week, Hollis Hull, a 1-year-old from Texas, was playing in her playroom with her 3-year-old sister Hatilynn while noshing on veggie chips. The sisters were playing with their favorite dollhouse when Hollis began to gasp for air. A veggie chip had lodged in her throat, compromising her airway.

Hollis knew what to do — find Mom. Jennifer Hull was putting on a TV program just a few feet away when she heard the sounds of her daughter's labored wheezing. But, thanks to a child safety class, Hull knew what to do, too. "I immediately jumped into mommy mode when it happened," Hull told ABC News.

Nanny camera footage shows Hull calmly tipping Hollis forward, striking her on the back before beginning the Heimlich maneuver. Almost as soon as the choking started, it was over — the food lodged in little Hollis's throat came up and dropped to the floor, leaving both mom and child relieved, but shaken.

Hull was in shock for the rest of the day, but reality struck when she told her husband, Tyler, who broke down after hearing about the incident. "He felt helpless as he watched the video," Hull explained to ABC News. The footage is harrowing — and hard for everyone, Hull included, to watch — but her decision to post the video on Facebook was a chance to help other parents, she said.

"It's different when it's your child who's helpless and gasping for air," she told ABC News. "We sat through every class that our hospital gave. It's the least you can do if you're going to bring a baby into the world."

The Facebook sphere commended Hull on being informed and for staying calm, cool and collected during a parent's worst nightmare. The end of the nanny cam video shows Hull giving Hollis water and pulling her close in a comforting hug — as a mom, she wishes she could have spared Hollis the fear. "I wish I could have gotten to her sooner," she said.

[h/t ABC News]