When the 24-year-old and three-months-pregnant Jessica Eaves fainted, Madelyn used the song "911 Green" to dial for help on her mother's BlackBerry phone, punching in 911, then the green send button to place the call, as she had been taught just a week before.
The girl was connected to a dispatcher. In recently released transcripts of the May 27 call, Madelyn was able to answer questions about her house and cars outside, leading emergency workers to the home.
This isn't the first time Madelyn has used a cell phone to call for help for her mother.
A year ago, Eaves first learned she had vasovagal syncope, a condition that can cause frequent fainting due to a sudden drop in blood pressure in the brain, and made up a simple song around the lyrics "green, green, green."
When Eaves lost consciousness back then while pregnant with her son, Madelyn picked up a cell phone and pressed the green button, which called the last person Eaves had called and that person called for help.
So Eaves revised the words to "911 green, 911 green," referring to the color of the send button on most cell phones.
On The Early Show Thursday, Eaves, who's now six months pregnant, told substitute co-anchor Jeff Glor, "I was completely shocked (this time around). When I woke up, the paramedics were there, and I was just like, 'Oh, my goodness, how did you know to come here?' And they said, 'Well, your daughter called 911.' And so, then I just started crying.
"If she hadn't called, there's no telling when someone would have thought, well, Jessica hasn't shown up for work yet, we'd better go check on her. It would have been 30 minutes or an hour before someone would have gotten there."
Eaves' foresight paid off.
"I wanted to teach her so that, if something happened, my kids wouldn't be in jeopardy -- not for my sake, but the sake of her and her little brother," Eaves remarked to Glor.
She added that this could and should be a lesson for everyone, saying, "I really think all parents should realize teach your kids to call 911 in case of an emergency. It helps not only you but it helps your kids, too."