Born premature, Kaleb Mayberry of Putnam County spent the first eight weeks of his life in the hospital, and regular visits did not end after that. Kaleb's parents say he was used to seeing doctors and was always cooperative, but that changed after a routine test left the then 4-year-old screaming in agony last August.

"If it hadn't been for his mother raving about the medicine and giving them problems, he wouldn't be here today," Kaleb's father, Javon Mayberry, recalled.

Now five years old, Kaleb's mother said he stands only a couple inches taller and is only a few pounds heavier than his two year old sister.

"When you're a mother, you're your child's advocate and so it's up to me to look out for his best interests" Jessica Mayberry explained. "I thought, 'he really hates being small. I need to look into what to do about it.'"

So Mayberry brought her son to the doctor, who recommended a routine growth hormone stimulation test - the same test that led to Ferrero's death October 10, 2007.

At the pharmacy, Mayberry said she received a full 300 milliliter bottle of arginine; by the time she stopped the test, approximately half the bottle remained. Ferrero received an infusion of two bottles, more than 60 grams of the amino acid; the test required 5.75 grams. Kaleb received only half the bottle, approximately 15 grams, but Mayberry said Kaleb displayed symptoms similar to Ferrero's and if caregivers paid more attention, they might not have made this mistake a second time.

"In his file, he was described as having a mild headache," she said. "I don't know what part of writhing on the floor and screaming 'my head is on fire' is mild, but that enraged me."

Kaleb recovered, but the Mayberrys just learned of the mistake last Wednesday almost three months after his test, two days ago, they received a call from the hospital asking why they had not paid their bill for the test yet. Kaleb is scheduled for a brain scan on Halloween day.

Mayberry said she feels lucky that after all that has happened she can still focus on getting her son ready for school next year, even though Kaleb has bigger aspirations:

"I want to be spider-man when I grow up."