An Iowa mother is thankful for her pint-sized hero — her son saved her life. Khayden Arnold, 4, spends most of his time playing with his brother and their friends in their Urbandale back yard, but in the fall of 2011 he spent 14 minutes on his mother's cell phone with a 911 dispatcher in Polk County after she collapsed at home from low blood sugar. KCCI's Keri Gavin has the story from 2011.

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