FORT WORTH (CBS 11 NEWS) – On days as hot as Friday, a Fort Worth hospital is proving how dangerous the heat is for children.

Cook Children’s Medical Center set up a display outside trying to show parents how quickly a car can heat up.

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In just one hour, the temperature Friday afternoon inside the display car quickly jumped up.

When the AC was on full blast the temperature inside the SUV was 82 degrees.

After more than an hour of the car being turned off the temperature hit 129.

The temperature outside was reading 103.

(credit: CBS 11 News/Arezow Doost)

(credit: CBS 11 News/Arezow Doost)

“That’s incredible – that’s unbelievable,” says new mom Stephanie Smith. “Actually, I can’t believe how hot it gets in the car with it only being 99 wow!”

Parents walked by the display in amazement.

“The numbers are outrageous. It’s just too much. It’s too much within seconds,” says parent Karina Martinez.

Doctors say a heat stroke can occur when the body temperature hits 104 and organs start to shut down at 107 degrees.

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“At about 104, they’ll begin to show signs of heat stroke – nausea,  vomiting they’ll stop sweating,” explains Sally Snow who is Cook Children’s Trauma Program Director. “By this time, their regulatory mechanisms fail and their temperature gets to a 107.  You’ll start to see multiple system organ failure. So their kidneys will fail, their liver fail, and ultimately their heart will fail.”

On a hot day, the temperatures quickly rise 19 degrees in just 10 minutes.

“Kiddos, their temperatures will jump about 5 times faster than adults on a hot day,” says Jeremiah Salmon who is the Injury Prevention Coordinator with Cook Children’s. “So it’s one of those where it doesn’t take them very long to overheat unfortunately.”

Salmon says there have been already 21 deaths in the United States, three in Texas and one in Tarrant County.

Snow says create some reminders for yourself like a purse, phone or shoes in the back seat so you remember to look back there.

Also, lock your car so your child doesn’t climb inside and get stuck.

(©2014 CBS Local Media, a division of CBS Radio Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)

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