Small children face many dangers, some more obvious than others. The recent passing of Brianna Florer, 2, shines new light on one in particular — batteries.

Brianna had been sick for a few days after Christmas, running a fever and throwing up, her grandfather Kent Vice told Tulsa World. Vice said his granddaughter was fine on Saturday, adding it had been "the perfect Christmas." But come Sunday evening, Brianna started to throw up blood and her skin had this "blue tint" to it.

Terrified, her parents called an ambulance and had Brianna taken to INTEGRIS Grove Hospital in Grove, Okla.; there, doctors took on X-ray of Brianna's body and found the button battery, a specialty battery often used to power wrist watches, pocket calculators, and hearing aids. Soon Brianna was transferred to Saint Frances Hospital in Tulsa, where she was taken into surgery.

"They operated on her for two and a half hours, but they couldn't stop the bleeding," Vice said. "They believed the battery (acid) ate through to her carotid artery by way of her esophagus…we had no idea when she swallowed it (the battery)." Eventually Vice and the rest of Brianna's family learned she likely swallowed the battery within six days of her death.

Now, Vice wants something done about the batteries, saying they are "dangerous" and should be kept out of houses. Until then, the Florer Family is focused on raising the money for Brianna's funeral expenses. They've set up a GoFundMe page that, as of this writing, is less than $2,000 away from its goal of $7,500.

"The family doesn't want this tragedy with Brianna to happen to any other child or family," the page reads. "Please be sure to share her story with all your friends and loved ones so that they will take precautions with their [children's] toys, remotes, hearing aides, and so many other things that now use these 'button batteries.'"

According to Randy Badillo, senior specialist for the Oklahoma Poison Control Center, there were 53 reported cases of people swallowing button or disc batteries in the past year. He said normally, the battery passes through the digestive system — "but if the battery lodges in the esophagus or digestive tract, it can open and release an alkaline substance that can cause corrosive or burning injuries."

Experts say it's important for families to keep track of batteries, never leaving them sitting around near small children, and checking all household devices to be sure the battery compartment is securely shut.