Today, I witnessed one of the more dramatic effects of medicine and physiology. A 3 year-old with a congenital heart defect became acutely hypoxic (quickly had low oxygen levels) and became unarousable. Her oxygen saturations were in the 20-30s.
We worked quickly to treat her but nothing seemed to work. Finally, we found a medicine to improve blood flow to her lungs and administered it through her IV. The effects were mesmerizing. Within 30 seconds, her saturation increased to 80% and just minutes later, she was talking to her mother.