More good news! The head physician of the pediatric ICU said he sees "dramatic improvement" in Zack's lungs per this morning's x-ray. Zack is on a steady healing course and it's definitely working for him. Taking Zack off the ECMO machine is in the foreseeable future and will hopefully happen some time this week, as soon as his lungs show they're ready to oxygenate his blood on their own.
Zack had lots of visitors this weekend, including his uncles Miguel and Michael, Grandma and Grandpa, Brian Armstrong, Suzy Happ and Zack's teacher, Donna Blaser.