What Is The Significance Of A High Dead Space To Tidal Volume Ratio?

What Is The Significance Of A High Dead Space To Tidal Volume Ratio? An elevated dead-space-to-tidal-volume ratio (VD/VT) has been proposed as a predictor of successful extubation in children. We hypothesized that a higher VD/VT value would be associated with extubation failure and higher postextubation respiratory support. What is the normal dead space to tidal