Incredible Story of a Lifesaving Dog That Can Sniff Out Girl’s Disease [VIDEO]

Kaelyn "KK" Krawczyk has a sever form of mastocytosis, which is a rare disease that causes an abnormal accumulation of mast cells in one or more organ systems. When these cells are activated, they can cause a life-threatening allergic reaction to simple, everyday things. These allergic reactions can be fatal and can escalate quickly to anaphylaxis or fatal shock.

According to ABC.com, KK's mother had this to say about her daughter's disease:

"She gets too hot, she gets stressed, she has an infection," said her mother, Michelle Krawzyck, 39. "Her reactions range from mild, like being flushed or irritable, to life-threatening drop in blood pressure, vomiting and difficulty breathing."

When Doctors warned the family that KK might not be able to go to school because of her condition, the family was devastated. KK needs to be monitored all night long so her parents worry that anything, even hot blankets, might lead to a reaction that causes a fall down the stairs, unconsciousness or worse.

Enter 'JJ', a terrier who can smell the cell changes before KK has a serious reaction and warn her parents that she needs her medical kit. WOW!

Just this past week, KK was needing to have surgery for recurring kidney infections. Doctors have learned that the dye used in surgical procedures and the chemicals in anesthesia can trigger dangerous allergic responses. So now 'JJ' and his trainer, are allowed in the operation room at Duke University Medical Center.

Here's what Dr, Brad Taicher told the News-Observer about the situation;