Zach did break his arm. And he has a bright red cast to prove it!
The doctor has said it's a supracondylar fracture. Fancy talk for he broke his upper arm right by the elbow. Very common for kids his age who play on monkey bars.
I feel like I should start a group called "Moms Against Monkey Bars- MAMB!" :) In all seriousness, Zach will be fine. He has to wear his cast for the next 3 weeks and then hopefully all will be healed. So if you are around and want to sign his cast- come on by. He is anxious to get signatures!